Barcode Operations

app/assets/js/scanner.js

@@ -0,0 +1,173 @@
+var scanner = (function() {
+  var _callback = null;
+  var _allow_raw = true;
+  var _allowed_types = null;
+  var _camera = null;
+  var _modal = null;
+  var _buffer = '';
+  var _last_key_ts = 0;
+  var _max_key_gap = 0;
+  var _HW_THRESHOLD = 50;
+
+  function _on_paste(e) {
+    if (!_callback) return;
+    var el = document.activeElement;
+    if (el && el.tagName === 'TEXTAREA') return;
+    var text = ((e.originalEvent || e).clipboardData || window.clipboardData).getData('text');
+    if (!text) return;
+    text = text.trim();
+    if (text.length < 3) return;
+    e.preventDefault();
+    _resolve(text);
+  }
+
+  function _on_keydown(e) {
+    var now = Date.now();
+    var gap = now - _last_key_ts;
+
+    if (gap > 500) {
+      _buffer = '';
+      _max_key_gap = 0;
+    } else if (_buffer.length > 0) {
+      _max_key_gap = Math.max(_max_key_gap, gap);
+    }
+    _last_key_ts = now;
+
+    if (e.key === 'Enter' && _buffer.length >= 3) {
+      var barcode = _buffer;
+      var is_scanner_input = _max_key_gap <= _HW_THRESHOLD;
+      _buffer = '';
+      _max_key_gap = 0;
+      if (is_scanner_input) {
+        e.preventDefault();
+        _remove_typed_barcode(barcode);
+        _resolve(barcode);
+      }
+      return;
+    }
+
+    if (e.key.length === 1) {
+      _buffer += e.key;
+    }
+  }
+
+  function _remove_typed_barcode(barcode) {
+    var el = document.activeElement;
+    if (!el || !('value' in el)) return;
+    if (el.tagName !== 'INPUT' && el.tagName !== 'TEXTAREA') return;
+
+    var value = String(el.value || '');
+    if (!value.endsWith(barcode)) return;
+    el.value = value.slice(0, value.length - barcode.length);
+    $(el).trigger('input');
+  }
+
+  function _resolve(barcode) {
+    if (!barcode || !_callback) return;
+
+    $.ajax({
+      url: server_url + 'ics/api/engine/barcode_lookup.php',
+      type: 'POST',
+      dataType: 'json',
+      data: { json: JSON.stringify({ barcode: barcode, action: 'read' }) },
+      headers: { 'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content') },
+      success: function(res) {
+        if (res && res.success) {
+          if ((!_allow_raw && res.type === 'raw') || (_allowed_types && _allowed_types.indexOf(res.type) === -1)) {
+            _show_error('This page only accepts generated barcode labels.');
+            return;
+          }
+          _callback(res.sku || '', res.product_name || '', res.uom || '', res);
+          return;
+        }
+        _show_error('Barcode not found: ' + barcode);
+      },
+      error: function(xhr) {
+        var msg = xhr.responseJSON && xhr.responseJSON.message ? xhr.responseJSON.message : 'Scanner error. Please try again.';
+        _show_error(msg === 'Barcode not found.' ? 'Barcode not found: ' + barcode : msg);
+      }
+    });
+  }
+
+  function _build_modal() {
+    if (_modal) return;
+    $('body').append(`
+      <div class="modal fade" id="scanner_modal" tabindex="-1" aria-hidden="true">
+        <div class="modal-dialog modal-dialog-centered">
+          <div class="modal-content">
+            <div class="modal-header">
+              <h5 class="modal-title"><i class="ti ti-scan me-2"></i>Scan Barcode</h5>
+              <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+              <div id="scanner_qr_reader"></div>
+              <div id="scanner_error" class="alert alert-danger mt-3 d-none"></div>
+            </div>
+          </div>
+        </div>
+      </div>`);
+    _modal = new bootstrap.Modal(document.getElementById('scanner_modal'));
+    document.getElementById('scanner_modal').addEventListener('hidden.bs.modal', _stop_camera);
+  }
+
+  function _start_camera() {
+    if (_camera) return;
+    if (typeof Html5Qrcode === 'undefined') {
+      _show_error('Camera scanner library is not available.');
+      return;
+    }
+    _camera = new Html5Qrcode('scanner_qr_reader');
+    _camera.start(
+      { facingMode: 'environment' },
+      { fps: 10, qrbox: { width: 250, height: 120 } },
+      function(decodedText) {
+        _modal.hide();
+        _resolve(decodedText);
+      },
+      function() {}
+    ).catch(function(err) {
+      _show_error('Camera error: ' + err);
+    });
+  }
+
+  function _stop_camera() {
+    if (!_camera) return;
+    _camera.stop().catch(function() {}).finally(function() {
+      _camera = null;
+    });
+  }
+
+  function _show_error(msg) {
+    var $err = $('#scanner_error');
+    if ($err.length) {
+      $err.text(msg).removeClass('d-none');
+      setTimeout(function() { $err.addClass('d-none'); }, 3000);
+      return;
+    }
+    if (typeof bootbox !== 'undefined') bootbox.alert(msg);
+  }
+
+  return {
+    init: function(options) {
+      options = options || {};
+      _callback = options.onScan || null;
+      _allow_raw = options.allowRaw !== false;
+      _allowed_types = Array.isArray(options.allowedTypes) ? options.allowedTypes : null;
+      document.removeEventListener('keydown', _on_keydown);
+      document.removeEventListener('paste', _on_paste);
+      document.addEventListener('keydown', _on_keydown);
+      document.addEventListener('paste', _on_paste);
+      _build_modal();
+    },
+    open_camera: function() {
+      if (!_modal) _build_modal();
+      _modal.show();
+      setTimeout(_start_camera, 400);
+    },
+    destroy: function() {
+      document.removeEventListener('keydown', _on_keydown);
+      document.removeEventListener('paste', _on_paste);
+      _stop_camera();
+    }
+  };
+})();

app/assets/utils/classes/ProductManager.php

@@ -317,7 +317,8 @@ class ProductManager {
         $sth = $this->pdo->prepare(
             "SELECT * FROM md_product
             WHERE company_id = :company_id
-            AND sku LIKE :keyword
+            AND (sku LIKE :keyword OR barcode LIKE :keyword)
+            AND status > 0
             LIMIT 50"
         );
         $sth->execute([
@@ -358,6 +359,7 @@ class ProductManager {
             ':company_id'    => $this->company_id,
             ':product_name'  => $data['product_name'],
             ':sku'           => $data['sku'],
+            ':barcode'       => trim($data['barcode'] ?? '') ?: null,
             ':uom'           => $data['uom'] ?? 'pcs',
             ':price'         => $data['price'],
             ':cost_price'    => (float)($data['cost_price'] ?? 0),
@@ -376,6 +378,7 @@ class ProductManager {
                 "UPDATE md_product SET
                     product_name   = :product_name,
                     sku            = :sku,
+                    barcode        = :barcode,
                     uom            = :uom,
                     price          = :price,
                     cost_price     = :cost_price,
@@ -391,10 +394,10 @@ class ProductManager {
         } else {
             $this->pdo->prepare(
                 "INSERT INTO md_product
-                    (company_id, product_name, sku, uom, price, cost_price, min_stock, reorder_point,
+                    (company_id, product_name, sku, barcode, uom, price, cost_price, min_stock, reorder_point,
                     category, product_image, `description`, `status`, `log`)
                 VALUES
-                    (:company_id, :product_name, :sku, :uom, :price, :cost_price, :min_stock, :reorder_point,
+                    (:company_id, :product_name, :sku, :barcode, :uom, :price, :cost_price, :min_stock, :reorder_point,
                     :category, :product_image, :description, :status, :log)"
             )->execute($params);
         }

app/ics/api/engine/barcode_lookup.php

@@ -0,0 +1,205 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+
+    $barcode = trim($data['barcode'] ?? '');
+
+    if (!$barcode) {
+        $answer['message'] = 'No barcode provided.';
+        http_response_code(400);
+        exit(json_encode($answer));
+    }
+
+    function findProduct(PDO $pdo, int $company_id, string $sku): array|false {
+        $sth = $pdo->prepare(
+            "SELECT sku, product_name, uom
+             FROM md_product
+             WHERE company_id = :company_id
+               AND sku = :sku
+               AND status > 0
+             LIMIT 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':sku' => $sku]);
+        return $sth->fetch(PDO::FETCH_ASSOC);
+    }
+
+    function validateLotSerial(PDO $pdo, int $company_id, string $sku, string $lot, string $serial): void {
+        if ($serial === '') return;
+
+        $warehouses = $pdo->prepare(
+            "SELECT id FROM md_warehouse
+             WHERE company_id = :company_id AND status = 1"
+        );
+        $warehouses->execute([':company_id' => $company_id]);
+
+        foreach ($warehouses->fetchAll(PDO::FETCH_COLUMN) as $warehouse_id) {
+            $table = 'td_stock_' . (int)$warehouse_id;
+            $sth = $pdo->prepare(
+                "SELECT lot_number
+                 FROM `{$table}`
+                 WHERE company_id = :company_id
+                   AND product_sku = :sku
+                   AND serial_number = :serial
+                   AND status != -1
+                 LIMIT 1"
+            );
+            $sth->execute([':company_id' => $company_id, ':sku' => $sku, ':serial' => $serial]);
+            $existing_lot = $sth->fetchColumn();
+            if ($existing_lot !== false && (string)$existing_lot !== $lot) {
+                throw new Exception('Serial number belongs to a different lot.');
+            }
+        }
+    }
+
+    function findPreparedLabel(PDO $pdo, int $company_id, string $barcode, string $type): array|false {
+        $sth = $pdo->prepare(
+            "SELECT *
+             FROM md_barcode
+             WHERE company_id = :company_id
+               AND barcode = :barcode
+               AND barcode_type = :barcode_type
+             LIMIT 1"
+        );
+        $sth->execute([
+            ':company_id'   => $company_id,
+            ':barcode'      => $barcode,
+            ':barcode_type' => $type,
+        ]);
+        $row = $sth->fetch(PDO::FETCH_ASSOC);
+        if ($row && (int)$row['status'] !== 1) {
+            throw new Exception('Barcode is disabled.');
+        }
+        return $row ?: false;
+    }
+
+    function advancedLocation(PDO $pdo, int $company_id): bool {
+        $sth = $pdo->prepare(
+            "SELECT value FROM company_setting
+             WHERE company_id = :company_id AND setting_key = 'advanced_location'
+             LIMIT 1"
+        );
+        $sth->execute([':company_id' => $company_id]);
+        $value = $sth->fetchColumn();
+        return (int)($value === false ? 0 : $value) === 1;
+    }
+
+    function validateLocation(PDO $pdo, int $company_id, int $warehouse_id, string $zone, string $aisle, string $rack): void {
+        $sth = $pdo->prepare(
+            "SELECT 1 FROM md_rack
+             WHERE company_id = :company_id
+               AND warehouse = :warehouse
+               AND zone = :zone
+               AND aisle = :aisle
+               AND rack = :rack
+             LIMIT 1"
+        );
+        $sth->execute([
+            ':company_id' => $company_id,
+            ':warehouse'  => $warehouse_id,
+            ':zone'       => $zone,
+            ':aisle'      => $aisle,
+            ':rack'       => $rack,
+        ]);
+        if (!$sth->fetchColumn()) throw new Exception('Location not found.');
+    }
+
+    $parts = explode('|', $barcode);
+    $label_type = strtoupper($parts[0] ?? '');
+
+    try {
+        if ($label_type === 'SKU') {
+            if (count($parts) !== 4) throw new Exception('Invalid SKU label format.');
+            $sku = trim($parts[1]);
+            $lot = trim($parts[2]);
+            $serial = trim($parts[3]);
+            if ($sku === '' || $lot === '' || $serial === '') throw new Exception('SKU, lot, and serial are required.');
+
+            $label = findPreparedLabel($pdo2, $company_id, $barcode, 'sku');
+            if (!$label) throw new Exception('SKU barcode label was not prepared.');
+            if ($label['product_sku'] !== $sku || $label['lot_number'] !== $lot || $label['serial_number'] !== $serial) {
+                throw new Exception('SKU barcode label does not match its registry.');
+            }
+
+            $product = findProduct($pdo2, $company_id, $sku);
+            if (!$product) throw new Exception('SKU not found.');
+            validateLotSerial($pdo2, $company_id, $sku, $lot, $serial);
+
+            $answer['success']       = 1;
+            $answer['type']          = 'sku';
+            $answer['sku']           = $product['sku'];
+            $answer['product_name']  = $product['product_name'];
+            $answer['uom']           = $product['uom'] ?? 'pcs';
+            $answer['lot_number']    = $lot;
+            $answer['serial_number'] = $serial;
+            exit(json_encode($answer));
+        }
+
+        if ($label_type === 'LOC') {
+            $advanced = advancedLocation($pdo1, $company_id);
+            if ($advanced && count($parts) !== 5) throw new Exception('Invalid advanced location label format.');
+            if (!$advanced && count($parts) !== 3) throw new Exception('Invalid location label format.');
+
+            $warehouse_id = (int)($parts[1] ?? 0);
+            if ($advanced) {
+                $zone = trim($parts[2]);
+                $aisle = trim($parts[3]);
+                $rack = trim($parts[4]);
+            } else {
+                $rack = trim($parts[2]);
+                $zone = $rack;
+                $aisle = $rack;
+            }
+            if (!$warehouse_id || $zone === '' || $aisle === '' || $rack === '') throw new Exception('Location label is incomplete.');
+
+            $label = findPreparedLabel($pdo2, $company_id, $barcode, 'loc');
+            if (!$label) throw new Exception('Location barcode label was not prepared.');
+            if ((int)$label['warehouse_id'] !== $warehouse_id || $label['zone'] !== $zone || $label['aisle'] !== $aisle || $label['rack'] !== $rack) {
+                throw new Exception('Location barcode label does not match its registry.');
+            }
+
+            validateLocation($pdo2, $company_id, $warehouse_id, $zone, $aisle, $rack);
+
+            $answer['success']      = 1;
+            $answer['type']         = 'loc';
+            $answer['warehouse_id'] = $warehouse_id;
+            $answer['zone']         = $zone;
+            $answer['aisle']        = $aisle;
+            $answer['rack']         = $rack;
+            exit(json_encode($answer));
+        }
+    } catch (Exception $e) {
+        $answer['message'] = $e->getMessage();
+        http_response_code(400);
+        exit(json_encode($answer));
+    }
+
+    $sth = $pdo2->prepare(
+        "SELECT sku, product_name, uom
+         FROM md_product
+         WHERE company_id = :company_id
+           AND (barcode = :barcode OR sku = :sku)
+           AND status > 0
+         ORDER BY (barcode = :barcode_order) DESC
+         LIMIT 1"
+    );
+    $sth->execute([
+        ':company_id'    => $company_id,
+        ':barcode'       => $barcode,
+        ':sku'           => $barcode,
+        ':barcode_order' => $barcode,
+    ]);
+    $product = $sth->fetch(PDO::FETCH_ASSOC);
+
+    if (!$product) {
+        $answer['message'] = 'Barcode not found.';
+        http_response_code(404);
+        exit(json_encode($answer));
+    }
+
+    $answer['success']      = 1;
+    $answer['type']         = 'raw';
+    $answer['sku']          = $product['sku'];
+    $answer['product_name'] = $product['product_name'];
+    $answer['uom']          = $product['uom'] ?? 'pcs';
+    exit(json_encode($answer));
+?>

app/ics/api/engine/location_barcode_label.php

@@ -0,0 +1,153 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+
+    function validateLocation(PDO $pdo, int $company_id, int $warehouse_id, string $zone, string $aisle, string $rack): void {
+        $sth = $pdo->prepare(
+            "SELECT 1 FROM md_rack
+             WHERE company_id = :company_id
+               AND warehouse = :warehouse
+               AND zone = :zone
+               AND aisle = :aisle
+               AND rack = :rack
+             LIMIT 1"
+        );
+        $sth->execute([
+            ':company_id' => $company_id,
+            ':warehouse'  => $warehouse_id,
+            ':zone'       => $zone,
+            ':aisle'      => $aisle,
+            ':rack'       => $rack,
+        ]);
+        if (!$sth->fetchColumn()) {
+            $answer = ['success' => 0, 'message' => 'Location not found.'];
+            http_response_code(404);
+            exit(json_encode($answer));
+        }
+    }
+
+    $label_action = $data['label_action'] ?? 'create';
+    $barcode      = trim($data['barcode'] ?? '');
+    $warehouse_id = (int)($data['warehouse_id'] ?? 0);
+    $zone         = trim($data['zone'] ?? '');
+    $aisle        = trim($data['aisle'] ?? '');
+    $rack         = trim($data['rack'] ?? '');
+
+    if ($label_action === 'list') {
+        $sth = $pdo2->prepare(
+            "SELECT barcode, warehouse_id, zone, aisle, rack, status, print_count, last_printed_dt
+             FROM md_barcode
+             WHERE company_id = :company_id
+               AND barcode_type = 'loc'"
+        );
+        $sth->execute([':company_id' => $company_id]);
+
+        $answer['success'] = 1;
+        $answer['output']  = $sth->fetchAll(PDO::FETCH_ASSOC);
+        exit(json_encode($answer));
+    }
+
+    if ($label_action === 'print') {
+        if ($barcode === '') {
+            $answer['message'] = 'No barcode provided.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $sth = $pdo2->prepare(
+            "UPDATE md_barcode
+             SET print_count = print_count + 1,
+                 last_printed_dt = NOW()
+             WHERE company_id = :company_id
+               AND barcode = :barcode
+               AND barcode_type = 'loc'
+               AND status = 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    }
+
+    if ($label_action === 'disable') {
+        if ($barcode === '') {
+            $answer['message'] = 'No barcode provided.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $sth = $pdo2->prepare(
+            "UPDATE md_barcode
+             SET status = 0
+             WHERE company_id = :company_id
+               AND barcode = :barcode
+               AND barcode_type = 'loc'
+               AND status = 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    }
+
+    if ($label_action === 'enable') {
+        if ($barcode === '') {
+            $answer['message'] = 'No barcode provided.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $sth = $pdo2->prepare(
+            "UPDATE md_barcode
+             SET status = 1
+             WHERE company_id = :company_id
+               AND barcode = :barcode
+               AND barcode_type = 'loc'
+               AND status <> 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    }
+
+    if ($barcode === '' || !$warehouse_id || $zone === '' || $aisle === '' || $rack === '') {
+        $answer['message'] = 'Location barcode data is incomplete.';
+        http_response_code(400);
+        exit(json_encode($answer));
+    }
+
+    validateLocation($pdo2, $company_id, $warehouse_id, $zone, $aisle, $rack);
+
+    $sth = $pdo2->prepare(
+        "INSERT INTO md_barcode
+            (company_id, barcode_type, barcode, warehouse_id, zone, aisle, rack)
+         VALUES
+            (:company_id, 'loc', :barcode, :warehouse_id, :zone, :aisle, :rack)
+         ON DUPLICATE KEY UPDATE
+            barcode_type = VALUES(barcode_type),
+            warehouse_id = VALUES(warehouse_id),
+            zone = VALUES(zone),
+            aisle = VALUES(aisle),
+            rack = VALUES(rack),
+            status = 1"
+    );
+    $sth->execute([
+        ':company_id'   => $company_id,
+        ':barcode'      => $barcode,
+        ':warehouse_id' => $warehouse_id,
+        ':zone'         => $zone,
+        ':aisle'        => $aisle,
+        ':rack'         => $rack,
+    ]);
+
+    $answer['success'] = 1;
+    $answer['output'] = [
+        'barcode'      => $barcode,
+        'warehouse_id' => $warehouse_id,
+        'zone'         => $zone,
+        'aisle'        => $aisle,
+        'rack'         => $rack,
+    ];
+    exit(json_encode($answer));
+?>

app/ics/api/engine/sku_barcode_label.php

@@ -0,0 +1,245 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+
+    function stockTableNameFromWarehouseId(int $warehouse_id): string {
+        return 'td_stock_' . $warehouse_id;
+    }
+
+    function findProduct(PDO $pdo, int $company_id, string $sku): array|false {
+        $sth = $pdo->prepare(
+            "SELECT sku, product_name, uom
+             FROM md_product
+             WHERE company_id = :company_id
+                AND sku = :sku
+                AND status > 0
+             LIMIT 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':sku' => $sku]);
+        return $sth->fetch(PDO::FETCH_ASSOC);
+    }
+
+    function activeStockLotExists(PDO $pdo, int $company_id, string $sku, string $lot): bool {
+        $warehouses = $pdo->prepare(
+            "SELECT id FROM md_warehouse
+             WHERE company_id = :company_id AND status = 1"
+        );
+        $warehouses->execute([':company_id' => $company_id]);
+
+        foreach ($warehouses->fetchAll(PDO::FETCH_COLUMN) as $warehouse_id) {
+            $table = stockTableNameFromWarehouseId((int)$warehouse_id);
+            $sth = $pdo->prepare(
+                "SELECT ROUND(SUM(COALESCE(`in`, 0)) - SUM(COALESCE(`out`, 0)), 2) AS balance
+                 FROM `{$table}`
+                 WHERE company_id = :company_id
+                    AND product_sku = :product_sku
+                    AND lot_number = :lot_number
+                    AND status = 1"
+            );
+            $sth->execute([
+                ':company_id'  => $company_id,
+                ':product_sku' => $sku,
+                ':lot_number'  => $lot,
+            ]);
+            if ((float)$sth->fetchColumn() > 0) return true;
+        }
+
+        return false;
+    }
+
+    function findLot(PDO $pdo, int $company_id, string $sku, string $lot): array|false {
+        $sth = $pdo->prepare(
+            "SELECT
+                l.product_sku,
+                l.lot_number,
+                l.expiry_date,
+                p.product_name,
+                p.uom
+             FROM md_lot l
+             INNER JOIN md_product p
+                ON p.company_id = l.company_id
+                AND p.sku = l.product_sku
+             WHERE l.company_id = :company_id
+                AND l.product_sku = :product_sku
+                AND l.lot_number = :lot_number
+                AND p.status > 0
+             LIMIT 1"
+        );
+        $sth->execute([
+            ':company_id'  => $company_id,
+            ':product_sku' => $sku,
+            ':lot_number'  => $lot,
+        ]);
+        $row = $sth->fetch(PDO::FETCH_ASSOC);
+        if ($row) return $row;
+
+        $product = findProduct($pdo, $company_id, $sku);
+        if (!$product || !activeStockLotExists($pdo, $company_id, $sku, $lot)) return false;
+
+        return [
+            'product_sku'  => $product['sku'],
+            'lot_number'   => $lot,
+            'expiry_date'  => null,
+            'product_name' => $product['product_name'],
+            'uom'          => $product['uom'],
+        ];
+    }
+
+    function listLabels(PDO $pdo, int $company_id, string $sku, string $lot): array {
+        $params = [':company_id' => $company_id];
+        $where = "WHERE b.company_id = :company_id";
+
+        if ($sku !== '') {
+            $where .= " AND b.product_sku = :product_sku";
+            $params[':product_sku'] = $sku;
+        }
+
+        if ($lot !== '') {
+            $where .= " AND b.lot_number = :lot_number";
+            $params[':lot_number'] = $lot;
+        }
+
+        $sth = $pdo->prepare(
+            "SELECT
+                b.id,
+                b.product_sku,
+                b.lot_number,
+                b.serial_number,
+                b.barcode,
+                b.status,
+                b.print_count,
+                b.last_printed_dt,
+                b.created_dt,
+                p.product_name
+             FROM md_barcode b
+             LEFT JOIN md_product p
+                ON p.company_id = b.company_id
+                AND p.sku = b.product_sku
+             {$where}
+                AND b.barcode_type = 'sku'
+             ORDER BY b.created_dt DESC, b.id DESC"
+        );
+        $sth->execute($params);
+        return $sth->fetchAll(PDO::FETCH_ASSOC);
+    }
+
+    $label_action = $data['label_action'] ?? 'read';
+    $product_sku  = trim($data['product_sku'] ?? '');
+    $lot_number   = trim($data['lot_number'] ?? '');
+
+    if ($label_action === 'print') {
+        $barcode = trim($data['barcode'] ?? '');
+        if ($barcode === '') {
+            $answer['message'] = 'No barcode provided.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $sth = $pdo2->prepare(
+            "UPDATE md_barcode
+             SET print_count = print_count + 1,
+                 last_printed_dt = NOW()
+             WHERE company_id = :company_id
+                AND barcode = :barcode
+                AND barcode_type = 'sku'
+                AND status = 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    }
+
+    if ($label_action === 'disable') {
+        $barcode = trim($data['barcode'] ?? '');
+        if ($barcode === '') {
+            $answer['message'] = 'No barcode provided.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $sth = $pdo2->prepare(
+            "UPDATE md_barcode
+             SET status = 0
+             WHERE company_id = :company_id
+                AND barcode = :barcode
+                AND barcode_type = 'sku'
+                AND status = 1"
+        );
+        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    }
+
+    if ($label_action === 'create') {
+        $serial_number = trim($data['serial_number'] ?? '');
+        $allow_unlisted = !empty($data['allow_unlisted']);
+
+        if ($product_sku === '' || $lot_number === '' || $serial_number === '') {
+            $answer['message'] = 'SKU, lot no, and serial no are required.';
+            http_response_code(400);
+            exit(json_encode($answer));
+        }
+
+        $lot = findLot($pdo2, $company_id, $product_sku, $lot_number);
+        if (!$lot) {
+            if (!$allow_unlisted) {
+                $answer['message'] = 'Lot not found.';
+                http_response_code(404);
+                exit(json_encode($answer));
+            }
+
+            $product = findProduct($pdo2, $company_id, $product_sku);
+            if (!$product) {
+                $answer['message'] = 'SKU not found.';
+                http_response_code(404);
+                exit(json_encode($answer));
+            }
+
+            $lot = [
+                'product_sku'  => $product['sku'],
+                'lot_number'   => $lot_number,
+                'expiry_date'  => null,
+                'product_name' => $product['product_name'],
+                'uom'          => $product['uom'],
+            ];
+        }
+
+        $barcode = "SKU|{$product_sku}|{$lot_number}|{$serial_number}";
+
+        $sth = $pdo2->prepare(
+            "INSERT INTO md_barcode
+                (company_id, barcode_type, barcode, product_sku, lot_number, serial_number)
+             VALUES
+                (:company_id, 'sku', :barcode, :product_sku, :lot_number, :serial_number)
+             ON DUPLICATE KEY UPDATE
+                barcode_type = VALUES(barcode_type),
+                product_sku = VALUES(product_sku),
+                lot_number = VALUES(lot_number),
+                serial_number = VALUES(serial_number),
+                status = 1"
+        );
+        $sth->execute([
+            ':company_id'    => $company_id,
+            ':product_sku'   => $product_sku,
+            ':lot_number'    => $lot_number,
+            ':serial_number' => $serial_number,
+            ':barcode'       => $barcode,
+        ]);
+
+        $answer['success'] = 1;
+        $answer['output'] = [
+            'product_sku'   => $product_sku,
+            'product_name'  => $lot['product_name'],
+            'lot_number'    => $lot_number,
+            'serial_number' => $serial_number,
+            'barcode'       => $barcode,
+        ];
+        exit(json_encode($answer));
+    }
+
+    $answer['success'] = 1;
+    $answer['output']  = listLabels($pdo2, $company_id, $product_sku, $lot_number);
+    exit(json_encode($answer));
+?>

app/ics/api/engine/sku_label_lots.php

@@ -0,0 +1,159 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+
+    function stockTableNameFromWarehouseId(int $warehouse_id): string {
+        return 'td_stock_' . $warehouse_id;
+    }
+
+    $sth = $pdo2->prepare(
+        "SELECT
+            l.id,
+            l.product_sku,
+            l.lot_number,
+            l.expiry_date,
+            l.description,
+            p.product_name,
+            p.uom,
+            'md_lot' AS source
+         FROM md_lot l
+         INNER JOIN md_product p
+            ON p.company_id = l.company_id
+            AND p.sku = l.product_sku
+         WHERE l.company_id = :company_id
+            AND p.status > 0
+         ORDER BY l.product_sku ASC, l.lot_number ASC"
+    );
+    $sth->execute([':company_id' => $company_id]);
+    $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
+    $seen = [];
+
+    foreach ($rows as $row) {
+        $seen[$row['product_sku'] . '|' . $row['lot_number']] = true;
+    }
+
+    $warehouses = $pdo2->prepare(
+        "SELECT id FROM md_warehouse
+         WHERE company_id = :company_id AND status = 1"
+    );
+    $warehouses->execute([':company_id' => $company_id]);
+
+    foreach ($warehouses->fetchAll(PDO::FETCH_COLUMN) as $warehouse_id) {
+        $table = stockTableNameFromWarehouseId((int)$warehouse_id);
+        $stock = $pdo2->query(
+            "SELECT
+                s.product_sku,
+                s.lot_number,
+                p.product_name,
+                p.uom,
+                ROUND(SUM(COALESCE(s.`in`, 0)) - SUM(COALESCE(s.`out`, 0)), 2) AS balance
+             FROM `{$table}` s
+             INNER JOIN md_product p
+                ON p.company_id = s.company_id
+                AND p.sku = s.product_sku
+             WHERE s.company_id = " . (int)$company_id . "
+                AND s.status = 1
+                AND s.lot_number IS NOT NULL
+                AND s.lot_number <> ''
+                AND p.status > 0
+             GROUP BY s.product_sku, s.lot_number, p.product_name, p.uom
+             HAVING balance > 0"
+        );
+
+        foreach ($stock->fetchAll(PDO::FETCH_ASSOC) as $row) {
+            $key = $row['product_sku'] . '|' . $row['lot_number'];
+            if (isset($seen[$key])) continue;
+            $seen[$key] = true;
+            $rows[] = [
+                'id'          => null,
+                'product_sku' => $row['product_sku'],
+                'lot_number'  => $row['lot_number'],
+                'expiry_date' => null,
+                'description' => 'Found in active stock; missing md_lot row.',
+                'product_name'=> $row['product_name'],
+                'uom'         => $row['uom'],
+                'source'      => 'active_stock',
+            ];
+        }
+    }
+
+    $barcodes = $pdo2->prepare(
+        "SELECT
+            b.product_sku,
+            b.lot_number,
+            b.serial_number,
+            b.barcode,
+            b.status,
+            b.created_dt,
+            p.product_name,
+            p.uom
+         FROM md_barcode b
+         INNER JOIN md_product p
+            ON p.company_id = b.company_id
+            AND p.sku = b.product_sku
+         WHERE b.company_id = :company_id
+            AND b.barcode_type = 'sku'
+            AND b.product_sku IS NOT NULL
+            AND b.product_sku <> ''
+            AND b.lot_number IS NOT NULL
+            AND b.lot_number <> ''
+            AND p.status > 0
+         ORDER BY b.created_dt DESC, b.id DESC"
+    );
+    $barcodes->execute([':company_id' => $company_id]);
+
+    foreach ($barcodes->fetchAll(PDO::FETCH_ASSOC) as $row) {
+        $key = $row['product_sku'] . '|' . $row['lot_number'];
+        if (isset($seen[$key])) continue;
+        $seen[$key] = true;
+        $rows[] = [
+            'id'            => null,
+            'product_sku'   => $row['product_sku'],
+            'lot_number'    => $row['lot_number'],
+            'expiry_date'   => null,
+            'description'   => 'Prepared barcode exists; missing md_lot row.',
+            'product_name'  => $row['product_name'],
+            'uom'           => $row['uom'],
+            'source'        => 'md_barcode',
+            'serial_number' => $row['serial_number'],
+            'barcode'       => $row['barcode'],
+        ];
+    }
+
+    $status_rows = $pdo2->prepare(
+        "SELECT
+            product_sku,
+            lot_number,
+            SUM(CASE WHEN status = 1 THEN 1 ELSE 0 END) AS active_count,
+            SUM(CASE WHEN status <> 1 THEN 1 ELSE 0 END) AS disabled_count
+         FROM md_barcode
+         WHERE company_id = :company_id
+            AND barcode_type = 'sku'
+            AND product_sku IS NOT NULL
+            AND product_sku <> ''
+            AND lot_number IS NOT NULL
+            AND lot_number <> ''
+         GROUP BY product_sku, lot_number"
+    );
+    $status_rows->execute([':company_id' => $company_id]);
+    $label_status = [];
+    foreach ($status_rows->fetchAll(PDO::FETCH_ASSOC) as $row) {
+        $label_status[$row['product_sku'] . '|' . $row['lot_number']] = [
+            'active_count'   => (int)$row['active_count'],
+            'disabled_count' => (int)$row['disabled_count'],
+        ];
+    }
+
+    foreach ($rows as &$row) {
+        $status = $label_status[$row['product_sku'] . '|' . $row['lot_number']] ?? null;
+        $row['barcode_active_count']   = $status['active_count']   ?? 0;
+        $row['barcode_disabled_count'] = $status['disabled_count'] ?? 0;
+    }
+    unset($row);
+
+    usort($rows, fn($a, $b) => [$a['product_sku'], $a['lot_number']] <=> [$b['product_sku'], $b['lot_number']]);
+
+    $answer['success'] = 1;
+    $answer['output']  = $rows;
+    exit(json_encode($answer));
+?>

app/ics/api/engine/sku_label_products.php

@@ -0,0 +1,17 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+
+    $sth = $pdo2->prepare(
+        "SELECT sku, product_name, uom
+         FROM md_product
+         WHERE company_id = :company_id
+           AND status > 0
+         ORDER BY sku ASC"
+    );
+    $sth->execute([':company_id' => $company_id]);
+
+    $answer['success'] = 1;
+    $answer['output']  = $sth->fetchAll(PDO::FETCH_ASSOC);
+    exit(json_encode($answer));
+?>

app/ics/api/engine/validate_scan_location.php

@@ -0,0 +1,86 @@
+<?php
+    session_start();
+    require '../../../assets/utils/db_auth.php';
+    require '../../../assets/utils/classes/WarehouseManager.php';
+
+    $whMgmt = new WarehouseManager($pdo2, $company_id);
+
+    $mode         = $data['mode'] ?? '';
+    $warehouse_id = (int)($data['warehouse_id'] ?? 0);
+    $zone         = trim($data['zone'] ?? '');
+    $aisle        = trim($data['aisle'] ?? '');
+    $rack         = trim($data['rack'] ?? '');
+    $product_sku  = trim($data['product_sku'] ?? '');
+    $lot_number   = trim($data['lot_number'] ?? '');
+    $serial       = trim($data['serial_number'] ?? '');
+
+    if (!$warehouse_id || $zone === '' || $aisle === '' || $rack === '') {
+        $answer['message'] = 'Location label is incomplete.';
+        http_response_code(400);
+        exit(json_encode($answer));
+    }
+
+    function rackRow(PDO $pdo, int $company_id, int $warehouse_id, string $zone, string $aisle, string $rack): array|false {
+        $sth = $pdo->prepare(
+            "SELECT id, product_sku, td_stock_id
+             FROM md_rack
+             WHERE company_id = :company_id
+               AND warehouse = :warehouse
+               AND zone = :zone
+               AND aisle = :aisle
+               AND rack = :rack
+             LIMIT 1"
+        );
+        $sth->execute([
+            ':company_id' => $company_id,
+            ':warehouse'  => $warehouse_id,
+            ':zone'       => $zone,
+            ':aisle'      => $aisle,
+            ':rack'       => $rack,
+        ]);
+        return $sth->fetch(PDO::FETCH_ASSOC);
+    }
+
+    try {
+        $rack_row = rackRow($pdo2, $company_id, $warehouse_id, $zone, $aisle, $rack);
+        if (!$rack_row) throw new Exception("Location {$zone}-{$aisle}-{$rack} does not exist.");
+
+        if ($mode === 'in' || $mode === 'to') {
+            if ($rack_row['product_sku'] !== null) {
+                throw new Exception("Location {$zone}-{$aisle}-{$rack} is already occupied by {$rack_row['product_sku']}.");
+            }
+
+            if ($mode === 'in' && $product_sku !== '') {
+                $whMgmt->validateStockUnique($product_sku, $lot_number ?: null, $serial ?: null);
+            }
+        } elseif ($mode === 'out' || $mode === 'from') {
+            if ($product_sku === '') throw new Exception('Scan the SKU label first.');
+
+            $stock = $whMgmt->getRackStock($warehouse_id, $zone, $aisle, $rack);
+            if (!$stock) {
+                throw new Exception("Location {$zone}-{$aisle}-{$rack} has no approved stock to move out.");
+            }
+
+            if ($stock['product_sku'] !== $product_sku) {
+                throw new Exception("Location holds {$stock['product_sku']}, not {$product_sku}.");
+            }
+
+            if ($lot_number !== '' && (string)$stock['lot_number'] !== $lot_number) {
+                throw new Exception("Location holds lot '{$stock['lot_number']}', not '{$lot_number}'.");
+            }
+
+            if ($serial !== '' && (string)$stock['serial_number'] !== $serial) {
+                throw new Exception("Location holds serial '{$stock['serial_number']}', not '{$serial}'.");
+            }
+        } else {
+            throw new Exception('Invalid scan validation mode.');
+        }
+
+        $answer['success'] = 1;
+        exit(json_encode($answer));
+    } catch (Exception $e) {
+        $answer['message'] = $e->getMessage();
+        http_response_code(400);
+        exit(json_encode($answer));
+    }
+?>

app/ics/location_barcode_label.php

@@ -0,0 +1,388 @@
+<?php
+  session_start();
+  require '../config.php';
+  require '../include_header.php';
+?>
+
+<body>
+  <?php require '../include_topbar.php'; ?>
+  <?php require '../include_master_sidebar.php'; ?>
+
+  <main id="content" class="content py-15">
+    <div class="container-fluid">
+      <div class="row mb-6">
+        <div class="col-12 d-flex justify-content-between align-items-center">
+          <div>
+            <h1 class="fs-3 mb-1">Location Barcode Labels</h1>
+            <p class="mb-0 text-muted">Print or reprint labels from the rack master list.</p>
+          </div>
+          <div class="d-flex gap-2">
+            <button id="btn_print" class="btn btn-outline-success" onclick="print_selected_label()" disabled>
+              <i class="ti ti-printer me-1"></i>Print
+            </button>
+            <button id="btn_disable" class="btn btn-outline-danger" onclick="disable_selected_label()" disabled>
+              <i class="ti ti-ban me-1"></i>Disable
+            </button>
+            <button id="btn_reenable" class="btn btn-outline-primary d-none" onclick="reenable_selected_label()">
+              <i class="ti ti-refresh me-1"></i>Re-enable
+            </button>
+          </div>
+        </div>
+      </div>
+
+      <div class="row g-5">
+        <div class="col-lg-7">
+          <div class="card"><div class="card-body p-5">
+            <div class="position-relative mb-4">
+              <input type="search" id="search_location" class="form-control ps-9"
+                placeholder="Search warehouse, zone, aisle, rack, or SKU...">
+              <span class="position-absolute top-25 ms-4">
+                <i class="ti ti-search text-muted"></i>
+              </span>
+            </div>
+            <div class="table-responsive table-scroll">
+              <table class="table table-hover mb-0">
+                <thead class="table-light">
+                  <tr>
+                    <th>Warehouse</th>
+                    <th class="th-zone">Zone</th>
+                    <th class="th-aisle">Aisle</th>
+                    <th id="th-rack">Rack</th>
+                    <th>Status</th>
+                    <th>Label Status</th>
+                    <th class="text-end">Action</th>
+                  </tr>
+                </thead>
+                <tbody id="rack_tbody">
+                  <tr><td colspan="7" class="text-center text-muted py-4">Loading locations...</td></tr>
+                </tbody>
+              </table>
+            </div>
+          </div></div>
+        </div>
+        <div class="col-lg-5">
+          <div class="card"><div class="card-body p-5">
+            <div id="label_preview" class="border rounded p-4 text-center text-muted">
+              Select a location to preview its label.
+            </div>
+          </div></div>
+        </div>
+      </div>
+    </div>
+  </main>
+
+  <?php require '../include_ending.php'; ?>
+  <script src="https://cdn.jsdelivr.net/npm/jsbarcode@3.11.6/dist/JsBarcode.all.min.js"></script>
+  <script>
+    var advanced = false;
+    var label_rack = 'Location';
+    var label_zone = 'Zone';
+    var label_aisle = 'Aisle';
+    var racks = [];
+    var barcode_status = {};
+    var selected_payload = '';
+    var selected_rack_index = -1;
+
+    function escape_html(value) {
+      return String(value ?? '').replace(/[&<>"']/g, function(char) {
+        return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#039;' }[char];
+      });
+    }
+
+    function refresh_header_buttons() {
+      var status = selected_payload ? barcode_status[selected_payload] : null;
+      var is_active   = status === 'active';
+      var is_disabled = status === 'disabled';
+      $('#btn_print').prop('disabled', !is_active).toggleClass('d-none', is_disabled);
+      $('#btn_disable').prop('disabled', !is_active).toggleClass('d-none', is_disabled);
+      $('#btn_reenable').toggleClass('d-none', !is_disabled);
+    }
+
+    function highlight_selected_row() {
+      $('#rack_tbody tr').removeClass('table-active');
+      if (selected_rack_index >= 0) {
+        $('#rack_tbody tr[data-rack-index="' + selected_rack_index + '"]').addClass('table-active');
+      }
+    }
+
+    function load_config() {
+      return ajax_request({
+        url: server_url + 'setting/api/engine/company_setting.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        onSuccess: function(res) {
+          var s = res.output || {};
+          advanced = s.advanced_location == 1;
+          label_rack = s.location_label_rack || (advanced ? 'Rack' : 'Location');
+          label_zone = s.location_label_zone || 'Zone';
+          label_aisle = s.location_label_aisle || 'Aisle';
+          $('.th-zone').text(label_zone).toggleClass('d-none', !advanced);
+          $('.th-aisle').text(label_aisle).toggleClass('d-none', !advanced);
+          $('#th-rack').text(label_rack);
+        }
+      });
+    }
+
+    function load_racks() {
+      return ajax_request({
+        url: server_url + 'reports/api/engine_report/rack_occupancy.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        onSuccess: function(res) {
+          racks = res.output || [];
+          render_racks();
+          highlight_selected_row();
+        }
+      });
+    }
+
+    function load_barcode_statuses() {
+      return ajax_request({
+        url: server_url + 'ics/api/engine/location_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: { label_action: 'list' },
+        onSuccess: function(res) {
+          barcode_status = {};
+          (res.output || []).forEach(function(item) {
+            barcode_status[item.barcode] = parseInt(item.status) === 1 ? 'active' : 'disabled';
+          });
+          render_racks();
+        }
+      });
+    }
+
+    function location_payload(item) {
+      return advanced
+        ? `LOC|${item.warehouse_id}|${item.zone}|${item.aisle}|${item.rack}`
+        : `LOC|${item.warehouse_id}|${item.rack}`;
+    }
+
+    function render_racks() {
+      var keyword = $('#search_location').val().toLowerCase();
+      var rows = racks.filter(function(item) {
+        if (!keyword) return true;
+        return [
+          item.warehouse_name,
+          item.zone,
+          item.aisle,
+          item.rack,
+          item.product_sku,
+          item.product_name,
+          item.status
+        ].join(' ').toLowerCase().includes(keyword);
+      });
+
+      if (!rows.length) {
+        $('#rack_tbody').html('<tr><td colspan="7" class="text-center text-muted py-4">No locations found.</td></tr>');
+        return;
+      }
+
+      var body = '';
+      rows.forEach(function(item) {
+        var idx = racks.indexOf(item);
+        var status = item.status === 'occupied'
+          ? '<span class="badge bg-warning text-dark">Occupied</span>'
+          : '<span class="badge bg-success">Empty</span>';
+        var payload = location_payload(item);
+        var labelStatus = '<span class="badge bg-secondary">Not prepared</span>';
+        if (barcode_status[payload] === 'active') {
+          labelStatus = '<span class="badge bg-success">Active</span>';
+        }
+        if (barcode_status[payload] === 'disabled') {
+          labelStatus = '<span class="badge bg-danger">Disabled</span>';
+        }
+        body += `<tr data-rack-index="${idx}">
+          <td>${escape_html(item.warehouse_name)}</td>
+          <td class="th-zone ${advanced ? '' : 'd-none'}">${escape_html(item.zone)}</td>
+          <td class="th-aisle ${advanced ? '' : 'd-none'}">${escape_html(item.aisle)}</td>
+          <td>${escape_html(item.rack)}</td>
+          <td>${status}</td>
+          <td>${labelStatus}</td>
+          <td class="text-end">
+            <button class="btn btn-sm btn-outline-primary" onclick="preview_label(${idx})">
+              <i class="ti ti-barcode me-1"></i>Preview
+            </button>
+          </td>
+        </tr>`;
+      });
+      $('#rack_tbody').html(body);
+    }
+
+    function render_preview(item, payload) {
+      $('#label_preview').html(`
+        <div class="barcode-label mx-auto">
+          <div class="fw-bold fs-5">${escape_html(item.warehouse_name)}</div>
+          <div class="small">${advanced
+            ? `${escape_html(item.zone)} / ${escape_html(item.aisle)} / ${escape_html(item.rack)}`
+            : escape_html(item.rack)}</div>
+          <svg id="barcode_svg"></svg>
+          <div class="small text-muted">${escape_html(payload)}</div>
+        </div>`);
+      JsBarcode('#barcode_svg', payload, { format: 'CODE128', width: 1.6, height: 70, displayValue: false });
+    }
+
+    function preview_label(index) {
+      var item = racks[index];
+      if (!item) return;
+      var payload = location_payload(item);
+
+      ajax_request({
+        url: server_url + 'ics/api/engine/location_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: {
+          label_action: 'create',
+          barcode: payload,
+          warehouse_id: item.warehouse_id,
+          zone: advanced ? item.zone : item.rack,
+          aisle: advanced ? item.aisle : item.rack,
+          rack: item.rack
+        },
+        onSuccess: function() {
+          selected_payload = payload;
+          selected_rack_index = index;
+          if (!barcode_status[payload]) barcode_status[payload] = 'active';
+          render_racks();
+          refresh_header_buttons();
+          highlight_selected_row();
+          render_preview(item, payload);
+        }
+      });
+    }
+
+    function print_selected_label() {
+      if (!selected_payload) {
+        bootbox.alert('Select a location label first.');
+        return;
+      }
+      ajax_request({
+        url: server_url + 'ics/api/engine/location_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: { label_action: 'print', barcode: selected_payload },
+        onSuccess: function() { window.print(); }
+      });
+    }
+
+    function disable_selected_label() {
+      if (!selected_payload) {
+        bootbox.alert('Select a location label first.');
+        return;
+      }
+
+      bootbox.confirm({
+        message: 'Disable this location barcode label? It will no longer be accepted by stock scans.',
+        buttons: {
+          confirm: { label: 'Disable', className: 'btn-danger' },
+          cancel:  { label: 'Back',    className: 'btn-secondary' }
+        },
+        callback: function(result) {
+          if (!result) return;
+          ajax_request({
+            url: server_url + 'ics/api/engine/location_barcode_label.php',
+            autoPrepare: true,
+            checkRequired: 0,
+            action: 'read',
+            queueLock: false,
+            data: { label_action: 'disable', barcode: selected_payload },
+            onSuccess: function() {
+              barcode_status[selected_payload] = 'disabled';
+              selected_payload = '';
+              selected_rack_index = -1;
+              $('#label_preview').html('Select a location to preview its label.');
+              render_racks();
+              refresh_header_buttons();
+              highlight_selected_row();
+            }
+          });
+        }
+      });
+    }
+
+    function reenable_selected_label() {
+      if (!selected_payload) return;
+      var index = selected_rack_index;
+      var item = racks[index];
+      if (!item) return;
+
+      ajax_request({
+        url: server_url + 'ics/api/engine/location_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: { label_action: 'enable', barcode: selected_payload },
+        onSuccess: function() {
+          barcode_status[selected_payload] = 'active';
+          render_racks();
+          refresh_header_buttons();
+          highlight_selected_row();
+          render_preview(item, selected_payload);
+        }
+      });
+    }
+
+    function enable_label_for_row(index) {
+      var item = racks[index];
+      if (!item) return;
+      var payload = location_payload(item);
+
+      ajax_request({
+        url: server_url + 'ics/api/engine/location_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: { label_action: 'enable', barcode: payload },
+        onSuccess: function() {
+          barcode_status[payload] = 'active';
+          selected_payload = payload;
+          selected_rack_index = index;
+          render_racks();
+          refresh_header_buttons();
+          highlight_selected_row();
+          render_preview(item, payload);
+        }
+      });
+    }
+
+    $('#search_location').on('input', render_racks);
+
+    $(async function() {
+      await load_config();
+      await load_racks();
+      await load_barcode_statuses();
+    });
+  </script>
+  <style>
+    .barcode-label { max-width: 420px; background: #fff; color: #111; }
+    .table-scroll {
+      max-height: calc(100vh - 320px);
+      overflow-y: auto;
+    }
+    .table-scroll thead th {
+      position: sticky;
+      top: 0;
+      z-index: 10;
+      background: #f8f9fa !important;
+      box-shadow: inset 0 -1px 0 #dee2e6;
+    }
+    @media print {
+      body * { visibility: hidden; }
+      #label_preview, #label_preview * { visibility: visible; }
+      #label_preview { position: absolute; left: 0; top: 0; width: 100%; border: 0 !important; }
+    }
+  </style>
+</body>
+</html>

app/ics/manage_stock_in.php

@@ -30,8 +30,13 @@
                 <!-- Product Name -->
                 <div class="mb-3 col-lg-3">
                   <label for="product_sku" class="form-label">SKU</label>
-                  <input type="text" id="product_sku" class="form-control product_search"
+                  <div class="input-group">
-                    placeholder="Type product sku..." autocomplete="off" required>
+                    <input type="text" id="product_sku" class="form-control product_search"
+                      placeholder="Type product sku..." autocomplete="off" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="scanner.open_camera()" title="Scan barcode label">
+                      <i class="ti ti-scan"></i>
+                    </button>
+                  </div>
                 </div>
                 <div class="mb-3 col-lg-3">
                   <label for="product_name" class="form-label">Name</label>
@@ -130,6 +135,8 @@
   var label_rack  = 'Location';
   var label_zone  = 'Zone';
   var label_aisle = 'Aisle';
+  var scan_sku_ready = false;
+  var scan_location_ready = false;
 
   function load_location_config(callback) {
     return ajax_request({
@@ -166,6 +173,100 @@
     }
   }
 
+  function set_select_value(selector, value, label) {
+    if (!value) return;
+    var $select = $(selector);
+    if (!$select.find(`option[value="${value}"]`).length) {
+      $select.append(`<option value="${value}">${label || value}</option>`);
+    }
+    $select.val(value);
+  }
+
+  function apply_sku_label_scan(data) {
+    $('#product_sku').val(data.sku).attr('secondary', data.sku);
+    $('#product_name').val(data.product_name || '').attr('secondary', data.product_name || '');
+    $('#lot_number').val(data.lot_number || '');
+    $('#serial_number').val(data.serial_number || '');
+    $('#quantity').val($('#quantity').val() || 1);
+    scan_sku_ready = true;
+    scan_location_ready = false;
+    $('#warehouse').val('');
+    $('#zone').val('');
+    $('#aisle').val('');
+    $('#rack').val('');
+    $('#product_sku').trigger('blur');
+  }
+
+  function apply_location_label_scan(data) {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first, then scan the location label.');
+      return;
+    }
+    validate_scanned_location('in', data, function() {
+      set_select_value('#warehouse', data.warehouse_id, data.warehouse_id);
+      if (advanced) {
+        set_select_value('#zone', data.zone, data.zone);
+        set_select_value('#aisle', data.aisle, data.aisle);
+      }
+      set_select_value('#rack', data.rack, data.rack);
+      scan_location_ready = true;
+    });
+  }
+
+  function validate_scanned_location(mode, data, onSuccess) {
+    ajax_request({
+      url: '<?php echo $server_url?>ics/api/engine/validate_scan_location.php',
+      autoPrepare: true,
+      checkRequired: 0,
+      action: 'read',
+      queueLock: false,
+      noLoading: true,
+      data: {
+        mode: mode,
+        warehouse_id: data.warehouse_id,
+        zone: data.zone,
+        aisle: data.aisle,
+        rack: data.rack,
+        product_sku: $('#product_sku').attr('secondary') || $('#product_sku').val(),
+        lot_number: $('#lot_number').val(),
+        serial_number: $('#serial_number').val()
+      },
+      onSuccess: onSuccess
+    });
+  }
+
+  function reset_stock_in_inputs() {
+    $('form')[0].reset();
+    $('#product_sku').removeAttr('secondary').prop('disabled', false);
+    $('#product_name').removeAttr('secondary').val('');
+    $('#lot_number, #serial_number, #expiry_date').prop('disabled', false);
+    $('#contact').removeAttr('secondary data-id');
+    if (expiryPicker) expiryPicker.clear();
+    if (!advanced) {
+      $('#zone').val('');
+      $('#aisle').val('');
+    }
+    $('#warehouse').val('');
+    $('#zone').val('');
+    $('#aisle').val('');
+    $('#rack').val('');
+    scan_sku_ready = false;
+    scan_location_ready = false;
+    $('#product_sku').focus();
+  }
+
+  function save_scanned_stock_in() {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first.');
+      return;
+    }
+    if (!scan_location_ready && !$('#rack').val()) {
+      bootbox.alert('Scan the location label before saving.');
+      return;
+    }
+    manage_stock_in();
+  }
+
   function manage_stock_in() {
 
     var rack_val      = $('#rack').val();
@@ -200,7 +301,11 @@
       },
       action: 'manage',
       onSuccess: function() {
+        <?php if(empty($_GET["id"])){ ?>
+        reset_stock_in_inputs();
+        <?php } else { ?>
         window.location.href = '<?php echo $server_url?>ics/stock_in.php';
+        <?php } ?>
       }
     });
 
@@ -238,6 +343,8 @@
       url: "<?php echo $server_url?>ics/api/engine/retrieve_warehouse.php",
       autoPrepare: true,
       checkRequired: 0,
+      noLoading: true,
+      queueLock: false,
       data: {
         "type": type
       },
@@ -262,6 +369,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data : {
         "type": type
       },
@@ -289,6 +397,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "type": type
       },
@@ -315,6 +424,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "type": type
       },
@@ -462,6 +572,14 @@
       await load_location_config(apply_location_labels);
       await retrieve_warehouse('to');
       await retrieve_for_edit();
+      scanner.init({
+        allowRaw: false,
+        allowedTypes: ['sku', 'loc'],
+        onScan: function(sku, product_name, uom, data) {
+          if (data.type === 'sku') apply_sku_label_scan(data);
+          if (data.type === 'loc') apply_location_label_scan(data);
+        }
+      });
 
       <?php if(!empty($_GET["sku"])){ ?>
       prefill_from_restock();
@@ -488,6 +606,13 @@
 
 
   <?php if(empty($_GET["id"])){ ?>
+  $(document).on('keydown', function(e) {
+    if (e.key === 'F2') {
+      e.preventDefault();
+      save_scanned_stock_in();
+    }
+  });
+
   $("select#warehouse").change(function() {
     if (advanced) {
       retrieve_zone('to');

app/ics/manage_stock_out.php

@@ -28,8 +28,13 @@
                 <!-- Step 1: Product -->
                 <div class="mb-3 col-lg-3">
                   <label for="product_sku" class="form-label">SKU</label>
-                  <input type="text" id="product_sku" class="form-control product_search"
+                  <div class="input-group">
-                    placeholder="Type product sku..." autocomplete="off" required>
+                    <input type="text" id="product_sku" class="form-control product_search"
+                      placeholder="Type product sku..." autocomplete="off" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="scanner.open_camera()" title="Scan barcode label">
+                      <i class="ti ti-scan"></i>
+                    </button>
+                  </div>
                 </div>
                 <div class="mb-3 col-lg-3">
                   <label for="product_name" class="form-label">Name</label>
@@ -117,6 +122,97 @@
   var label_rack  = 'Location';
   var label_zone  = 'Zone';
   var label_aisle = 'Aisle';
+  var scan_sku_ready = false;
+  var scan_location_ready = false;
+  var pending_scan_lot = '';
+  var pending_scan_serial = '';
+
+  function set_select_value(selector, value, label) {
+    if (!value) return;
+    var $select = $(selector);
+    if (!$select.find(`option[value="${value}"]`).length) {
+      $select.append(`<option value="${value}">${label || value}</option>`);
+    }
+    $select.val(value).prop('disabled', false);
+  }
+
+  function apply_sku_label_scan(data) {
+    $('#product_sku').val(data.sku).attr('secondary', data.sku);
+    $('#product_name').val(data.product_name || '').attr('secondary', data.product_name || '');
+    pending_scan_lot = data.lot_number || '';
+    pending_scan_serial = data.serial_number || '';
+    set_select_value('#lot_number', data.lot_number, data.lot_number);
+    set_select_value('#serial_number', data.serial_number, data.serial_number);
+    scan_sku_ready = true;
+    scan_location_ready = false;
+    reset_location();
+    retrieve_active_lot();
+  }
+
+  function apply_location_label_scan(data) {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first, then scan the location label.');
+      return;
+    }
+    validate_scanned_location('out', data, function() {
+      set_select_value('#warehouse', data.warehouse_id, data.warehouse_id);
+      if (advanced) {
+        set_select_value('#zone', data.zone, data.zone);
+        set_select_value('#aisle', data.aisle, data.aisle);
+      }
+      set_select_value('#rack', data.rack, data.rack);
+      scan_location_ready = true;
+    });
+  }
+
+  function validate_scanned_location(mode, data, onSuccess) {
+    ajax_request({
+      url: '<?php echo $server_url?>ics/api/engine/validate_scan_location.php',
+      autoPrepare: true,
+      checkRequired: 0,
+      action: 'read',
+      queueLock: false,
+      noLoading: true,
+      data: {
+        mode: mode,
+        warehouse_id: data.warehouse_id,
+        zone: data.zone,
+        aisle: data.aisle,
+        rack: data.rack,
+        product_sku: $('#product_sku').attr('secondary') || $('#product_sku').val(),
+        lot_number: $('#lot_number').val(),
+        serial_number: $('#serial_number').val()
+      },
+      onSuccess: onSuccess
+    });
+  }
+
+  function reset_stock_out_inputs() {
+    $('form')[0].reset();
+    $('#product_sku').removeAttr('secondary').prop('disabled', false);
+    $('#product_name').removeAttr('secondary').val('');
+    $('#lot_number').html('<option value="">Select lot...</option>').prop('disabled', false);
+    $('#serial_number').html('<option value="">Select serial...</option>').prop('disabled', false);
+    $('#contact').removeAttr('secondary data-id');
+    reset_location();
+    scan_sku_ready = false;
+    scan_location_ready = false;
+    pending_scan_lot = '';
+    pending_scan_serial = '';
+    $('#product_sku').focus();
+  }
+
+  function save_scanned_stock_out() {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first.');
+      return;
+    }
+    if (!scan_location_ready && !$('#rack').val()) {
+      bootbox.alert('Scan the location label before saving.');
+      return;
+    }
+    manage_stock_out();
+  }
 
   function load_location_config(callback) {
     return ajax_request({
@@ -171,10 +267,16 @@
         'rack':        rack_val,
         'product_sku': sku_val,
         'warehouse':   wh_val,
+        'lot_number':  $('#lot_number').val(),
+        'serial_number': $('#serial_number').val(),
       },
       action: 'manage',
       onSuccess: function() {
+        <?php if(empty($_GET["id"])){ ?>
+        reset_stock_out_inputs();
+        <?php } else { ?>
         window.location.href = '<?php echo $server_url?>ics/stock_out.php';
+        <?php } ?>
       }
     });
   }
@@ -215,6 +317,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       action: 'read',
       data: { "product_sku": sku },
       onSuccess: function(res) {
@@ -226,10 +329,18 @@
           option += `<option value="${item.lot_number}">${label}</option>`;
         });
         $('#lot_number').html(option).prop('disabled', false);
+        if (pending_scan_lot) {
+          set_select_value('#lot_number', pending_scan_lot, pending_scan_lot);
+        }
         $('#serial_number').html('<option value="">Select serial... (optional)</option>').prop('disabled', false);
 
         // Reset downstream
-        reset_location();
+        if (!scan_location_ready) reset_location();
+        if (pending_scan_lot) {
+          retrieve_active_serial();
+        } else {
+          retrieve_warehouse();
+        }
       }
     });
   }
@@ -248,6 +359,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       action: 'read',
       data: { "product_sku": sku, "lot_number": lot },
       onSuccess: function(res) {
@@ -257,9 +369,14 @@
           option += `<option value="${serial}">${serial}</option>`;
         });
         $('#serial_number').html(option).prop('disabled', false);
+        if (pending_scan_serial) {
+          set_select_value('#serial_number', pending_scan_serial, pending_scan_serial);
+          pending_scan_serial = '';
+        }
 
         // Reset downstream
-        reset_location();
+        if (!scan_location_ready) reset_location();
+        retrieve_warehouse();
       }
     });
   }
@@ -273,6 +390,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "type": 'from',
         "product_sku": $('#product_sku').attr('secondary') || $('#product_sku').val(),
@@ -280,11 +398,13 @@
       },
       action: 'read',
       onSuccess: function(res) {
+        var current = $('#warehouse').val();
         var option = '<option value="">Select warehouse...</option>';
         $.each(res.output, function(key, item) {
           option += `<option value='${item.id}'>${item.warehouse_name}</option>`;
         });
         $('#warehouse').html(option).prop('disabled', false);
+        if (current) set_select_value('#warehouse', current, current);
       }
     });
   }
@@ -298,6 +418,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "warehouse":     $('#warehouse').val(),
         "type":          'from',
@@ -324,6 +445,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "warehouse":     $('#warehouse').val(),
         "zone":          $('#zone').val(),
@@ -351,6 +473,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         "warehouse":     $('#warehouse').val(),
         "zone":          $('#zone').val(),
@@ -454,6 +577,14 @@
       await load_location_config(apply_location_labels);
       await retrieve_warehouse();
       await retrieve_for_edit();
+      scanner.init({
+        allowRaw: false,
+        allowedTypes: ['sku', 'loc'],
+        onScan: function(sku, product_name, uom, data) {
+          if (data.type === 'sku') apply_sku_label_scan(data);
+          if (data.type === 'loc') apply_location_label_scan(data);
+        }
+      });
     } catch(e) {
       console.log(e);
     }
@@ -462,6 +593,12 @@
 
   // ── Change handlers (create mode only) ───────────────────────────────
   <?php if(empty($_GET["id"])){ ?>
+  $(document).on('keydown', function(e) {
+    if (e.key === 'F2') {
+      e.preventDefault();
+      save_scanned_stock_out();
+    }
+  });
 
   // SKU selected → load lots
   $('input#product_sku').on('blur', function() {

app/ics/manage_stock_transfer.php

@@ -28,8 +28,13 @@
                 <!-- Step 1: Product -->
                 <div class="mb-3 col-lg-3">
                   <label for="product_sku" class="form-label">SKU</label>
-                  <input type="text" id="product_sku" class="form-control product_search"
+                  <div class="input-group">
-                    placeholder="Type product sku..." autocomplete="off" required>
+                    <input type="text" id="product_sku" class="form-control product_search"
+                      placeholder="Type product sku..." autocomplete="off" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="scanner.open_camera()" title="Scan barcode label">
+                      <i class="ti ti-scan"></i>
+                    </button>
+                  </div>
                 </div>
                 <div class="mb-3 col-lg-3">
                   <label for="product_name" class="form-label">Name</label>
@@ -150,6 +155,133 @@
   var label_rack  = 'Location';
   var label_zone  = 'Zone';
   var label_aisle = 'Aisle';
+  var scan_sku_ready = false;
+  var scan_from_ready = false;
+  var scan_to_ready = false;
+  var pending_scan_lot = '';
+  var pending_scan_serial = '';
+
+  function set_select_value(selector, value, label) {
+    if (!value) return;
+    var $select = $(selector);
+    if (!$select.find(`option[value="${value}"]`).length) {
+      $select.append(`<option value="${value}">${label || value}</option>`);
+    }
+    $select.val(value).prop('disabled', false);
+  }
+
+  function apply_sku_label_scan(data) {
+    $('#product_sku').val(data.sku).attr('secondary', data.sku);
+    $('#product_name').val(data.product_name || '').attr('secondary', data.product_name || '');
+    pending_scan_lot = data.lot_number || '';
+    pending_scan_serial = data.serial_number || '';
+    set_select_value('#lot_number', data.lot_number, data.lot_number);
+    set_select_value('#serial_number', data.serial_number, data.serial_number);
+    scan_sku_ready = true;
+    scan_from_ready = false;
+    scan_to_ready = false;
+    reset_from_location();
+    reset_to_location();
+    retrieve_active_lot();
+  }
+
+  function apply_location_label_scan(data) {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first, then scan the from-location label.');
+      return;
+    }
+
+    var role = scan_from_ready ? 'to' : 'from';
+    if (role === 'to' && same_location_as_from(data)) {
+      bootbox.alert('To-location must be different from from-location.');
+      return;
+    }
+
+    validate_scanned_location(role, data, function() {
+      set_select_value('#warehouse_' + role, data.warehouse_id, data.warehouse_id);
+      if (advanced) {
+        set_select_value('#zone_' + role, data.zone, data.zone);
+        set_select_value('#aisle_' + role, data.aisle, data.aisle);
+      }
+      set_select_value('#rack_' + role, data.rack, data.rack);
+
+      if (role === 'from') {
+        scan_from_ready = true;
+      } else {
+        scan_to_ready = true;
+      }
+    });
+  }
+
+  function same_location_as_from(data) {
+    return String($('#warehouse_from').val()) === String(data.warehouse_id)
+      && String($('#zone_from').val()) === String(data.zone)
+      && String($('#aisle_from').val()) === String(data.aisle)
+      && String($('#rack_from').val()) === String(data.rack);
+  }
+
+  function validate_scanned_location(role, data, onSuccess) {
+    ajax_request({
+      url: '<?php echo $server_url?>ics/api/engine/validate_scan_location.php',
+      autoPrepare: true,
+      checkRequired: 0,
+      action: 'read',
+      queueLock: false,
+      noLoading: true,
+      data: {
+        mode: role,
+        warehouse_id: data.warehouse_id,
+        zone: data.zone,
+        aisle: data.aisle,
+        rack: data.rack,
+        product_sku: $('#product_sku').attr('secondary') || $('#product_sku').val(),
+        lot_number: $('#lot_number').val(),
+        serial_number: $('#serial_number').val()
+      },
+      onSuccess: onSuccess
+    });
+  }
+
+  function reset_to_location() {
+    $('#warehouse_to').val('');
+    $('#zone_to').html('<option value="">Please select ' + label_zone.toLowerCase() + '</option>').val('');
+    $('#aisle_to').html('<option value="">Please select ' + label_aisle.toLowerCase() + '</option>').val('');
+    $('#rack_to').html('<option value="">Please select ' + label_rack.toLowerCase() + '</option>').val('');
+  }
+
+  function reset_stock_transfer_inputs() {
+    $('form')[0].reset();
+    $('#product_sku').removeAttr('secondary').prop('disabled', false);
+    $('#product_name').removeAttr('secondary').val('');
+    $('#lot_number').html('<option value="">Select lot...</option>').prop('disabled', false);
+    $('#serial_number').html('<option value="">Select serial...</option>').prop('disabled', false);
+    $('#contact').removeAttr('secondary data-id');
+    reset_from_location();
+    reset_to_location();
+    retrieve_warehouse('to');
+    scan_sku_ready = false;
+    scan_from_ready = false;
+    scan_to_ready = false;
+    pending_scan_lot = '';
+    pending_scan_serial = '';
+    $('#product_sku').focus();
+  }
+
+  function save_scanned_stock_transfer() {
+    if (!scan_sku_ready && !($('#product_sku').attr('secondary') || $('#product_sku').val())) {
+      bootbox.alert('Scan the SKU label first.');
+      return;
+    }
+    if (!scan_from_ready && !$('#rack_from').val()) {
+      bootbox.alert('Scan the from-location label before saving.');
+      return;
+    }
+    if (!scan_to_ready && !$('#rack_to').val()) {
+      bootbox.alert('Scan the to-location label before saving.');
+      return;
+    }
+    manage_stock_transfer();
+  }
 
   function load_location_config(callback) {
     return ajax_request({
@@ -224,10 +356,16 @@
         'aisle_to':       advanced ? $('#aisle_to').val() : rack_to_val,
         'rack_to':        rack_to_val,
         'product_sku':    sku_val,
+        'lot_number':     $('#lot_number').val(),
+        'serial_number':  $('#serial_number').val(),
       },
       action: 'manage',
       onSuccess: function() {
+        <?php if(empty($_GET['id'])){ ?>
+        reset_stock_transfer_inputs();
+        <?php } else { ?>
         window.location.href = '<?php echo $server_url?>ics/stock_transfer.php';
+        <?php } ?>
       }
     });
   }
@@ -266,6 +404,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       action: 'read',
       data: { 'product_sku': sku },
       onSuccess: function(res) {
@@ -276,8 +415,16 @@
           option += '<option value="' + item.lot_number + '">' + label + '</option>';
         });
         $('#lot_number').html(option).prop('disabled', false);
+        if (pending_scan_lot) {
+          set_select_value('#lot_number', pending_scan_lot, pending_scan_lot);
+        }
         $('#serial_number').html('<option value="">Select serial... (optional)</option>').prop('disabled', false);
-        reset_from_location();
+        if (!scan_from_ready) reset_from_location();
+        if (pending_scan_lot) {
+          retrieve_active_serial();
+        } else {
+          retrieve_warehouse('from');
+        }
       }
     });
   }
@@ -292,6 +439,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       action: 'read',
       data: { 'product_sku': sku, 'lot_number': $('#lot_number').val() },
       onSuccess: function(res) {
@@ -300,7 +448,12 @@
           option += '<option value="' + serial + '">' + serial + '</option>';
         });
         $('#serial_number').html(option).prop('disabled', false);
-        reset_from_location();
+        if (pending_scan_serial) {
+          set_select_value('#serial_number', pending_scan_serial, pending_scan_serial);
+          pending_scan_serial = '';
+        }
+        if (!scan_from_ready) reset_from_location();
+        retrieve_warehouse('from');
       }
     });
   }
@@ -313,6 +466,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: {
         'type': type,
         'product_sku': type === 'from' ? ($('#product_sku').attr('secondary') || $('#product_sku').val()) : '',
@@ -320,11 +474,13 @@
       },
       action: 'read',
       onSuccess: function(res) {
+        var current = $('#warehouse_' + type).val();
         var option = '<option value="">Select warehouse...</option>';
         $.each(res.output, function(key, item) {
           option += '<option value="' + item.id + '">' + item.warehouse_name + '</option>';
         });
         $('select[name="warehouse"][role="' + type + '"]').html(option).prop('disabled', false);
+        if (current) set_select_value('#warehouse_' + type, current, current);
       }
     });
   }
@@ -348,6 +504,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: Object.assign({ 'type': type }, extra),
       action: 'read',
       onSuccess: function(res) {
@@ -380,6 +537,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: Object.assign({ 'type': type }, extra),
       action: 'read',
       onSuccess: function(res) {
@@ -414,6 +572,7 @@
       autoPrepare: true,
       checkRequired: 0,
       noLoading: true,
+      queueLock: false,
       data: Object.assign({ 'type': type }, extra),
       action: 'read',
       onSuccess: function(res) {
@@ -535,6 +694,14 @@
       await retrieve_warehouse('to');
       <?php } ?>
       await retrieve_for_edit();
+      scanner.init({
+        allowRaw: false,
+        allowedTypes: ['sku', 'loc'],
+        onScan: function(sku, product_name, uom, data) {
+          if (data.type === 'sku') apply_sku_label_scan(data);
+          if (data.type === 'loc') apply_location_label_scan(data);
+        }
+      });
     } catch(e) {
       console.log(e);
     }
@@ -544,6 +711,13 @@
   // ── Change handlers (create mode only) ───────────────────────────────────
   <?php if(empty($_GET['id'])){ ?>
 
+  $(document).on('keydown', function(e) {
+    if (e.key === 'F2') {
+      e.preventDefault();
+      save_scanned_stock_transfer();
+    }
+  });
+
   $('input#product_sku').on('blur', function() {
     var sku = $(this).attr('secondary');
     if (!sku) return;

app/ics/sku_barcode_label.php

@@ -0,0 +1,538 @@
+<?php
+  session_start();
+  require '../config.php';
+  require '../include_header.php';
+?>
+
+<body>
+  <?php require '../include_topbar.php'; ?>
+  <?php require '../include_master_sidebar.php'; ?>
+
+  <main id="content" class="content py-15">
+    <div class="container-fluid">
+      <div class="row mb-6">
+        <div class="col-12 d-flex justify-content-between align-items-center">
+          <div>
+            <h1 class="fs-3 mb-1">SKU Barcode Labels</h1>
+            <p class="mb-0 text-muted">Print or reprint product identity labels from the lot master list.</p>
+          </div>
+          <div class="d-flex gap-2">
+            <button class="btn btn-success" onclick="open_create_label_modal()">
+              <i class="ti ti-plus me-1"></i>New Barcode
+            </button>
+            <button id="btn_print" class="btn btn-outline-success" onclick="print_selected_label()" disabled>
+              <i class="ti ti-printer me-1"></i>Print
+            </button>
+            <button id="btn_disable" class="btn btn-outline-danger" onclick="disable_selected_label()" disabled>
+              <i class="ti ti-ban me-1"></i>Disable
+            </button>
+          </div>
+        </div>
+      </div>
+
+      <div class="row g-5">
+        <div class="col-lg-7">
+          <div class="card">
+            <div class="card-body p-5">
+              <div class="position-relative mb-4">
+                <input type="search" id="search_lot" class="form-control ps-9"
+                  placeholder="Search SKU, product, lot, expiry, or description...">
+                <span class="position-absolute top-25 ms-4">
+                  <i class="ti ti-search text-muted"></i>
+                </span>
+              </div>
+              <div class="table-responsive table-scroll">
+                <table class="table table-hover mb-0">
+                  <thead class="table-light">
+                    <tr>
+                      <th>SKU</th>
+                      <th>Product</th>
+                      <th>Lot No</th>
+                      <th>Expiry</th>
+                      <th>Source</th>
+                      <th class="text-end">Action</th>
+                    </tr>
+                  </thead>
+                  <tbody id="lot_tbody">
+                    <tr><td colspan="7" class="text-center text-muted py-4">Loading lots...</td></tr>
+                  </tbody>
+                </table>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div class="col-lg-5">
+          <div class="card">
+            <div class="card-body p-5">
+              <div id="label_preview" class="border rounded p-4 text-center text-muted">
+                Select a lot to preview its label.
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </main>
+
+  <!-- Manage Labels Modal (view existing + add new) -->
+  <div class="modal fade" id="skuLabelModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog modal-dialog-centered">
+      <div class="modal-content">
+        <div class="modal-header">
+          <div>
+            <h5 class="modal-title mb-0">Barcode Labels</h5>
+            <p class="text-muted small mb-0 mt-1" id="modal_lot_info"></p>
+          </div>
+          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+        </div>
+        <div class="modal-body">
+          <input type="hidden" id="modal_lot_index">
+
+          <p class="fw-semibold small text-uppercase text-muted mb-2">Existing Labels</p>
+          <div id="existing_label_list" class="small text-muted mb-4">Loading...</div>
+
+          <hr class="my-3">
+
+          <p class="fw-semibold small text-uppercase text-muted mb-2">Add New Label</p>
+          <div class="input-group">
+            <input type="text" id="modal_serial_number" class="form-control" placeholder="Serial No"
+              autocomplete="off">
+            <button class="btn btn-primary" type="button" onclick="generate_label_from_modal()">
+              <i class="ti ti-barcode me-1"></i>Generate
+            </button>
+          </div>
+          <small class="text-muted">Enter a new serial to create a label, or enter an existing serial to reprint.</small>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-light" data-bs-dismiss="modal">Close</button>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <!-- New Barcode Modal (free-form, lot need not exist yet) -->
+  <div class="modal fade" id="createSkuLabelModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog modal-dialog-centered">
+      <div class="modal-content">
+        <div class="modal-header">
+          <h5 class="modal-title">New Barcode</h5>
+          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+        </div>
+        <div class="modal-body">
+          <div class="mb-3">
+            <label class="form-label">SKU</label>
+            <select id="create_sku" class="form-select" onchange="sync_create_product_name()"></select>
+          </div>
+          <div class="mb-3">
+            <label class="form-label">Product</label>
+            <input type="text" id="create_product_name" class="form-control" readonly>
+          </div>
+          <div class="mb-3">
+            <label class="form-label">Lot No</label>
+            <input type="text" id="create_lot_number" class="form-control" autocomplete="off">
+          </div>
+          <div class="mb-3">
+            <label class="form-label">Serial No</label>
+            <input type="text" id="create_serial_number" class="form-control" autocomplete="off">
+          </div>
+          <div class="alert alert-light border mb-0 small">
+            Use this to prepare a label before the lot has been received into the system.
+          </div>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-light" data-bs-dismiss="modal">Cancel</button>
+          <button type="button" class="btn btn-primary" onclick="create_custom_label()">
+            <i class="ti ti-barcode me-1"></i>Create & Preview
+          </button>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <?php require '../include_ending.php'; ?>
+  <script src="https://cdn.jsdelivr.net/npm/jsbarcode@3.11.6/dist/JsBarcode.all.min.js"></script>
+  <script>
+    var lots = [];
+    var products = [];
+    var active_labels = [];
+    var selected_payload = '';
+    var selected_label_data = null;
+    var selected_lot_index = -1;
+    var sku_label_modal = null;
+    var create_label_modal = null;
+
+    function escape_html(value) {
+      return String(value ?? '').replace(/[&<>"']/g, function(char) {
+        return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#039;' }[char];
+      });
+    }
+
+    function refresh_header_buttons() {
+      var has = !!selected_payload;
+      $('#btn_print').prop('disabled', !has);
+      $('#btn_disable').prop('disabled', !has);
+    }
+
+    function highlight_selected_row() {
+      $('#lot_tbody tr').removeClass('table-active');
+      if (selected_lot_index >= 0) {
+        $('#lot_tbody tr[data-lot-index="' + selected_lot_index + '"]').addClass('table-active');
+      }
+    }
+
+    function load_lots() {
+      return ajax_request({
+        url: server_url + 'ics/api/engine/sku_label_lots.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        onSuccess: function(res) {
+          lots = res.output || [];
+          render_lots();
+          highlight_selected_row();
+        }
+      });
+    }
+
+    function load_products() {
+      return ajax_request({
+        url: server_url + 'ics/api/engine/sku_label_products.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        onSuccess: function(res) {
+          products = res.output || [];
+          var opts = '<option value="">Select SKU...</option>';
+          products.forEach(function(item) {
+            opts += `<option value="${escape_html(item.sku)}">${escape_html(item.sku)} - ${escape_html(item.product_name)}</option>`;
+          });
+          $('#create_sku').html(opts);
+        }
+      });
+    }
+
+    function selected_create_product() {
+      var sku = $('#create_sku').val();
+      return products.find(function(item) { return item.sku === sku; }) || {};
+    }
+
+    function sync_create_product_name() {
+      var item = selected_create_product();
+      $('#create_product_name').val(item.product_name || '');
+    }
+
+    function open_create_label_modal() {
+      $('#create_sku').val('');
+      $('#create_product_name').val('');
+      $('#create_lot_number').val('');
+      $('#create_serial_number').val('');
+      create_label_modal.show();
+    }
+
+    function render_lots() {
+      var keyword = $('#search_lot').val().toLowerCase();
+      var rows = lots.filter(function(item) {
+        if (!keyword) return true;
+        return [
+          item.product_sku,
+          item.product_name,
+          item.lot_number,
+          item.expiry_date,
+          item.description
+        ].join(' ').toLowerCase().includes(keyword);
+      });
+
+      if (!rows.length) {
+        $('#lot_tbody').html('<tr><td colspan="7" class="text-center text-muted py-4">No lots found.</td></tr>');
+        return;
+      }
+
+      var body = '';
+      rows.forEach(function(item) {
+        var idx = lots.indexOf(item);
+        var source = '<span class="badge bg-success">Lot master</span>';
+        if (item.source === 'active_stock') {
+          source = '<span class="badge bg-warning text-dark">Stock only</span>';
+        }
+        if (item.source === 'md_barcode') {
+          source = '<span class="badge bg-info text-dark">Barcode only</span>';
+        }
+
+        body += `<tr data-lot-index="${idx}">
+          <td class="fw-semibold">${escape_html(item.product_sku)}</td>
+          <td>${escape_html(item.product_name)}</td>
+          <td>${escape_html(item.lot_number)}</td>
+          <td>${item.expiry_date ? escape_html(item.expiry_date) : '<span class="text-muted">—</span>'}</td>
+          <td>${source}</td>
+          <td class="text-end">
+            <button class="btn btn-sm btn-outline-primary" onclick="open_label_modal(${idx})">
+              <i class="ti ti-list me-1"></i>Labels
+            </button>
+          </td>
+        </tr>`;
+      });
+      $('#lot_tbody').html(body);
+    }
+
+    function open_label_modal(index) {
+      var item = lots[index];
+      if (!item) return;
+
+      $('#modal_lot_index').val(index);
+      var info = escape_html(item.product_sku) + ' &middot; ' + escape_html(item.lot_number);
+      if (item.expiry_date) info += ' &middot; Exp ' + escape_html(item.expiry_date);
+      $('#modal_lot_info').html(info);
+      $('#modal_serial_number').val('');
+      $('#existing_label_list').html('Loading...');
+      sku_label_modal.show();
+      load_existing_labels(item);
+      setTimeout(function() { $('#modal_serial_number').trigger('focus'); }, 300);
+    }
+
+    function load_existing_labels(item) {
+      ajax_request({
+        url: server_url + 'ics/api/engine/sku_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: {
+          product_sku: item.product_sku,
+          lot_number: item.lot_number
+        },
+        onSuccess: function(res) {
+          active_labels = res.output || [];
+          if (!active_labels.length) {
+            $('#existing_label_list').html('<span class="text-muted">No labels prepared for this lot yet.</span>');
+            return;
+          }
+
+          var html = '<div class="list-group list-group-flush">';
+          active_labels.forEach(function(label, index) {
+            var statusBadge = parseInt(label.status) === 1
+              ? '<span class="badge bg-success ms-2">Active</span>'
+              : '<span class="badge bg-danger ms-2">Disabled</span>';
+            var actionButtons = parseInt(label.status) === 1
+              ? `<button type="button" class="btn btn-sm btn-outline-primary" onclick="preview_existing_label(${index})">
+                  <i class="ti ti-eye me-1"></i>Select
+                </button>
+                <button type="button" class="btn btn-sm btn-outline-danger" onclick="disable_existing_label(${index})">
+                  <i class="ti ti-ban me-1"></i>Disable
+                </button>`
+              : `<button type="button" class="btn btn-sm btn-outline-success" onclick="reenable_existing_label(${index})">
+                  <i class="ti ti-refresh me-1"></i>Re-enable
+                </button>`;
+            html += `<div class="list-group-item d-flex justify-content-between align-items-center px-0">
+              <span class="small">${escape_html(label.serial_number)} ${statusBadge}</span>
+              <div class="d-flex gap-2">${actionButtons}</div>
+            </div>`;
+          });
+          html += '</div>';
+          $('#existing_label_list').html(html);
+        }
+      });
+    }
+
+    function preview_label(data, lot_index) {
+      selected_payload = data.barcode;
+      selected_label_data = data;
+      if (lot_index !== undefined) selected_lot_index = lot_index;
+      $('#label_preview').html(`
+        <div class="barcode-label mx-auto">
+          <div class="fw-bold fs-5">${escape_html(data.product_sku)}</div>
+          <div class="small text-muted">${escape_html(data.product_name)}</div>
+          <svg id="barcode_svg"></svg>
+          <div class="small">Lot: ${escape_html(data.lot_number)} &nbsp; Serial: ${escape_html(data.serial_number)}</div>
+          <div class="small text-muted">${escape_html(data.barcode)}</div>
+        </div>`);
+      JsBarcode('#barcode_svg', data.barcode, { format: 'CODE128', width: 1.6, height: 70, displayValue: false });
+      sku_label_modal.hide();
+      refresh_header_buttons();
+      highlight_selected_row();
+    }
+
+    function preview_existing_label(index) {
+      var label = active_labels[index];
+      if (!label) return;
+      var lot_index = parseInt($('#modal_lot_index').val(), 10);
+      preview_label(label, lot_index);
+    }
+
+    function clear_selected_label() {
+      selected_payload = '';
+      selected_label_data = null;
+      selected_lot_index = -1;
+      $('#label_preview').html('Select a lot to preview its label.');
+      refresh_header_buttons();
+      highlight_selected_row();
+    }
+
+    function disable_barcode_label(barcode, onDone) {
+      bootbox.confirm({
+        message: 'Disable this SKU barcode label? It will no longer be accepted by stock scans.',
+        buttons: {
+          confirm: { label: 'Disable', className: 'btn-danger' },
+          cancel:  { label: 'Back',    className: 'btn-secondary' }
+        },
+        callback: function(result) {
+          if (!result) return;
+          ajax_request({
+            url: server_url + 'ics/api/engine/sku_barcode_label.php',
+            autoPrepare: true,
+            checkRequired: 0,
+            action: 'read',
+            queueLock: false,
+            data: { label_action: 'disable', barcode: barcode },
+            onSuccess: function() {
+              clear_selected_label();
+              load_lots();
+              onDone?.();
+            }
+          });
+        }
+      });
+    }
+
+    function disable_existing_label(index) {
+      var label = active_labels[index];
+      if (!label) return;
+      disable_barcode_label(label.barcode, function() {
+        var item = lots[parseInt($('#modal_lot_index').val(), 10)];
+        if (item) load_existing_labels(item);
+      });
+    }
+
+    function reenable_existing_label(index) {
+      var label = active_labels[index];
+      if (!label) return;
+      ajax_request({
+        url: server_url + 'ics/api/engine/sku_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: {
+          label_action: 'create',
+          allow_unlisted: 1,
+          product_sku: label.product_sku,
+          lot_number: label.lot_number,
+          serial_number: label.serial_number
+        },
+        onSuccess: function() {
+          var item = lots[parseInt($('#modal_lot_index').val(), 10)];
+          if (item) load_existing_labels(item);
+          load_lots();
+        }
+      });
+    }
+
+    function disable_selected_label() {
+      disable_barcode_label(selected_payload);
+    }
+
+    function generate_label_from_modal() {
+      var item = lots[parseInt($('#modal_lot_index').val(), 10)];
+      var serial = $('#modal_serial_number').val().trim();
+      if (!item || !serial) {
+        bootbox.alert('Serial no is required.');
+        return;
+      }
+
+      ajax_request({
+        url: server_url + 'ics/api/engine/sku_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: {
+          label_action: 'create',
+          product_sku: item.product_sku,
+          lot_number: item.lot_number,
+          serial_number: serial
+        },
+        onSuccess: function(res) {
+          var lot_index = parseInt($('#modal_lot_index').val(), 10);
+          preview_label(res.output, lot_index);
+          load_lots();
+        }
+      });
+    }
+
+    function create_custom_label() {
+      var sku = $('#create_sku').val();
+      var lot = $('#create_lot_number').val().trim();
+      var serial = $('#create_serial_number').val().trim();
+
+      if (!sku || !lot || !serial) {
+        bootbox.alert('SKU, lot no, and serial no are required.');
+        return;
+      }
+
+      ajax_request({
+        url: server_url + 'ics/api/engine/sku_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: {
+          label_action: 'create',
+          allow_unlisted: 1,
+          product_sku: sku,
+          lot_number: lot,
+          serial_number: serial
+        },
+        onSuccess: function(res) {
+          selected_lot_index = -1;
+          create_label_modal.hide();
+          preview_label(res.output);
+          load_lots();
+        }
+      });
+    }
+
+    function print_selected_label() {
+      if (!selected_payload) return;
+      ajax_request({
+        url: server_url + 'ics/api/engine/sku_barcode_label.php',
+        autoPrepare: true,
+        checkRequired: 0,
+        action: 'read',
+        queueLock: false,
+        data: { label_action: 'print', barcode: selected_payload },
+        onSuccess: function() { window.print(); }
+      });
+    }
+
+    $('#search_lot').on('input', render_lots);
+
+    $(function() {
+      sku_label_modal = new bootstrap.Modal(document.getElementById('skuLabelModal'));
+      create_label_modal = new bootstrap.Modal(document.getElementById('createSkuLabelModal'));
+      load_lots();
+      load_products();
+    });
+  </script>
+  <style>
+    .barcode-label { max-width: 420px; background: #fff; color: #111; }
+    .table-scroll {
+      max-height: calc(100vh - 320px);
+      overflow-y: auto;
+    }
+    .table-scroll thead th {
+      position: sticky;
+      top: 0;
+      z-index: 10;
+      background: #f8f9fa !important;
+      box-shadow: inset 0 -1px 0 #dee2e6;
+    }
+    @media print {
+      body * { visibility: hidden; }
+      #label_preview, #label_preview * { visibility: visible; }
+      #label_preview { position: absolute; left: 0; top: 0; width: 100%; border: 0 !important; }
+    }
+  </style>
+</body>
+</html>

app/include_header.php

@@ -6,9 +6,9 @@
   <title>ThreeWMS</title>
   <meta name="csrf-token" content="<?= htmlspecialchars($_SESSION['csrf_token'] ?? '') ?>">
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <link rel="apple-touch-icon" sizes="180x180" href="<?php echo $server_url?>assets/images/apple-touch-icon.png">
+  <link rel="apple-touch-icon" sizes="180x180" href="<?php echo $server_url?>assets/images/favicon.png">
-  <link rel="icon" type="image/png" sizes="32x32" href="<?php echo $server_url?>assets/images/favicon-32x32.png">
+  <link rel="icon" type="image/png" sizes="32x32" href="<?php echo $server_url?>assets/images/favicon.png">
-  <link rel="icon" type="image/png" sizes="16x16" href="<?php echo $server_url?>assets/images/favicon-16x16.png">
+  <link rel="icon" type="image/png" sizes="16x16" href="<?php echo $server_url?>assets/images/favicon.png">
   <link rel="manifest" href="<?php echo $server_url?>assets/site.webmanifest">
 
   <!-- jquery  -->
@@ -58,4 +58,8 @@
   <link rel="stylesheet" href="<?php echo $server_url?>assets/css/custom.css">
   <script src="<?php echo $server_url?>assets/js/custom.js"></script>
 
-</head>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/html5-qrcode/2.3.8/html5-qrcode.min.js"
+    crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+  <script src="<?php echo $server_url?>assets/js/scanner.js"></script>
+
+</head>

app/include_master_sidebar.php

@@ -6,11 +6,7 @@
 <aside id="sidebar" class="sidebar overflow-y-auto d-flex flex-column">
   <div class="logo-area">
     <a href="<?php echo $server_url?>index.php" class="d-inline-flex">
-      <img
+      <img src="<?php echo $server_url?>assets/images/favicon.png" alt="" width="40"/>
-        src="data:image/svg+xml,%3csvg%20width='62'%20height='67'%20viewBox='0%200%2062%2067'%20fill='none'%20xmlns='http://www.w3.org/2000/svg'%3e%3cpath%20d='M30.604%2066.378L0.00805664%2048.1582V35.7825L30.604%2054.0023V66.378Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2048.1582L30.604%2066.378V54.0023L61.1996%2035.7825V48.1582Z'%20fill='%23E66239'/%3e%3cpath%20d='M30.5955%200L0%2018.2198V30.5955L30.5955%2012.3757V0Z'%20fill='%23657E92'/%3e%3cpath%20d='M61.191%2018.2198L30.5955%200V12.3757L61.191%2030.5955V18.2198Z'%20fill='%23A3B2BE'/%3e%3cpath%20d='M30.604%2048.8457L0.00805664%2030.6259V18.2498L30.604%2036.47V48.8457Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2030.6259L30.604%2048.8457V36.47L61.1996%2018.2498V30.6259Z'%20fill='%23E66239'/%3e%3c/svg%3e"
-        alt=""
-        width="24"
-      />
       <span class="logo-text ms-2">
         <img src="<?php echo $server_url?>assets/images/logo.svg" alt="" />
       </span>
@@ -32,6 +28,13 @@
       </a>
     </li>
 
+    <li>
+      <a class="nav-link" href="<?php echo $server_url?>ics/sku_barcode_label.php">
+        <i class="ti ti-barcode"></i>
+        <span class="nav-text">SKU Labels</span>
+      </a>
+    </li>
+
     <li>
       <a class="nav-link <?php echo in_array($current_page, ['warehouse.php', 'manage_warehouse.php', 'manage_storage.php']) ? 'active' : ''; ?>"
          href="<?php echo $server_url?>inventory/warehouse.php">
@@ -40,6 +43,13 @@
       </a>
     </li>
 
+    <li>
+      <a class="nav-link" href="<?php echo $server_url?>ics/location_barcode_label.php">
+        <i class="ti ti-map-pin-code"></i>
+        <span class="nav-text">Location Labels</span>
+      </a>
+    </li>
+
     <li>
       <a class="nav-link <?php echo in_array($current_page, ['contact.php', 'manage_contact.php', 'manage_contact_type.php']) ? 'active' : ''; ?>"
          href="<?php echo $server_url?>contact/contact.php">

app/include_setting_sidebar.php

@@ -6,11 +6,7 @@
 <aside id="sidebar" class="sidebar overflow-y-auto d-flex flex-column">
   <div class="logo-area">
     <a href="<?php echo $server_url?>index.php" class="d-inline-flex">
-      <img
+      <img src="<?php echo $server_url?>assets/images/favicon.png" alt="" width="40"/>
-        src="data:image/svg+xml,%3csvg%20width='62'%20height='67'%20viewBox='0%200%2062%2067'%20fill='none'%20xmlns='http://www.w3.org/2000/svg'%3e%3cpath%20d='M30.604%2066.378L0.00805664%2048.1582V35.7825L30.604%2054.0023V66.378Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2048.1582L30.604%2066.378V54.0023L61.1996%2035.7825V48.1582Z'%20fill='%23E66239'/%3e%3cpath%20d='M30.5955%200L0%2018.2198V30.5955L30.5955%2012.3757V0Z'%20fill='%23657E92'/%3e%3cpath%20d='M61.191%2018.2198L30.5955%200V12.3757L61.191%2030.5955V18.2198Z'%20fill='%23A3B2BE'/%3e%3cpath%20d='M30.604%2048.8457L0.00805664%2030.6259V18.2498L30.604%2036.47V48.8457Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2030.6259L30.604%2048.8457V36.47L61.1996%2018.2498V30.6259Z'%20fill='%23E66239'/%3e%3c/svg%3e"
-        alt=""
-        width="24"
-      />
       <span class="logo-text ms-2">
         <img src="<?php echo $server_url?>assets/images/logo.svg" alt="" />
       </span>

app/include_sidebar.php

@@ -2,13 +2,9 @@
 <aside id="sidebar" class="sidebar overflow-y-auto">
   <div class="logo-area">
     <a href="index.html" class="d-inline-flex">
-      <img
+      <img src="<?php echo $server_url?>assets/images/favicon.png" alt="" width="40"/>
-        src="data:image/svg+xml,%3csvg%20width='62'%20height='67'%20viewBox='0%200%2062%2067'%20fill='none'%20xmlns='http://www.w3.org/2000/svg'%3e%3cpath%20d='M30.604%2066.378L0.00805664%2048.1582V35.7825L30.604%2054.0023V66.378Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2048.1582L30.604%2066.378V54.0023L61.1996%2035.7825V48.1582Z'%20fill='%23E66239'/%3e%3cpath%20d='M30.5955%200L0%2018.2198V30.5955L30.5955%2012.3757V0Z'%20fill='%23657E92'/%3e%3cpath%20d='M61.191%2018.2198L30.5955%200V12.3757L61.191%2030.5955V18.2198Z'%20fill='%23A3B2BE'/%3e%3cpath%20d='M30.604%2048.8457L0.00805664%2030.6259V18.2498L30.604%2036.47V48.8457Z'%20fill='%23302C4D'/%3e%3cpath%20d='M61.1996%2030.6259L30.604%2048.8457V36.47L61.1996%2018.2498V30.6259Z'%20fill='%23E66239'/%3e%3c/svg%3e"
-        alt=""
-        width="24"
-      />
       <span class="logo-text ms-2">
-        <img src="./assets/images/logo.svg" alt="" />
+        <img src="<?php echo $server_url?>assets/images/logo.svg" alt="" />
       </span>
     </a>
   </div>
@@ -136,4 +132,4 @@
     <li><br><br><br><br></li>
 
   </ul>
-</aside>
+</aside>

app/inventory/manage_product.php

@@ -33,10 +33,14 @@
                   <label for="product_name" class="form-label">Product Name</label>
                   <input type="text" class="form-control" id="product_name" placeholder="Enter product name" required>
                 </div>
-                <div class="col-md-6 mb-3">
+                <div class="col-md-3 mb-3">
                   <label for="sku" class="form-label">SKU</label>
                   <input type="text" class="form-control" id="sku" placeholder="Enter SKU" required>
                 </div>
+                <div class="col-md-3 mb-3">
+                  <label for="barcode" class="form-label">Barcode <span class="text-muted fw-normal">(optional)</span></label>
+                  <input type="text" class="form-control" id="barcode" placeholder="e.g. 8850999001234" autocomplete="off" maxlength="64">
+                </div>
               </div>
               <div class="row">
                 <div class="col-md-3 mb-3">
@@ -149,6 +153,7 @@
     }
 
     formData.append('keep_files', $('#current_file_label').val())
+    formData.append('barcode', $('#barcode').val() || '')
     formData.append('cost_price', $('#cost_price').val() || 0)
     formData.append('uom', $('#uom').val() || 'pcs')