diff --git a/app/assets/utils/classes/ReportManager.php b/app/assets/utils/classes/ReportManager.php
index 8e38d53..86c1d81 100644
--- a/app/assets/utils/classes/ReportManager.php
+++ b/app/assets/utils/classes/ReportManager.php
@@ -27,7 +27,7 @@ class ReportManager
     public function __construct(PDO $pdo, int $company_id, string $mainDb = '')
     {
         $this->pdo       = $pdo;
-        $this->companyId = $company_id;
+        $this->company_id = $company_id;
         $this->mainDb    = $mainDb;
     }
 
@@ -51,7 +51,7 @@ class ReportManager
             "SELECT id FROM md_warehouse
              WHERE company_id = :company_id AND id = :id AND status = 1"
         );
-        $sth->execute([':company_id' => $this->companyId, ':id' => $warehouse_id]);
+        $sth->execute([':company_id' => $this->company_id, ':id' => $warehouse_id]);
         $id = $sth->fetchColumn();
         if (!$id) return null;
 
@@ -70,7 +70,7 @@ class ReportManager
     private function fetchScalar(string $sql)
     {
         $sth = $this->pdo->prepare($sql);
-        $sth->execute([":company_id" => $this->companyId]);
+        $sth->execute([":company_id" => $this->company_id]);
         return $sth->fetchColumn();
     }
 
@@ -86,7 +86,7 @@ class ReportManager
     private function fetchAll(string $sql): array
     {
         $sth = $this->pdo->prepare($sql);
-        $sth->execute([":company_id" => $this->companyId]);
+        $sth->execute([":company_id" => $this->company_id]);
         return $sth->fetchAll(PDO::FETCH_ASSOC);
     }
 
@@ -317,7 +317,7 @@ class ReportManager
              FROM etl_stock_summary
              WHERE company_id = :company_id"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         return $sth->fetch(PDO::FETCH_ASSOC) ?: ['total_in' => 0, 'total_out' => 0];
     }
 
@@ -329,7 +329,7 @@ class ReportManager
              WHERE company_id = :company_id
                AND status    != -1"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         [$total_orders, $total_revenue] = $sth->fetch(PDO::FETCH_NUM) ?: [0, 0];
 
         return [
@@ -346,7 +346,7 @@ class ReportManager
                AND doc_type   = 'invoice'
                AND status    IN (0, 1, 3)"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $unpaid_invoices = (int)$sth->fetchColumn();
 
         $sth = $this->pdo->prepare(
@@ -354,7 +354,7 @@ class ReportManager
              WHERE company_id = :company_id
                AND status     = 0"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $pending_returns = (int)$sth->fetchColumn();
 
         return [
@@ -497,7 +497,7 @@ class ReportManager
              WHERE company_id = :company_id
                AND month      = :month"
         );
-        $sth->execute([':company_id' => $this->companyId, ':month' => $month]);
+        $sth->execute([':company_id' => $this->company_id, ':month' => $month]);
         return $sth->fetch(PDO::FETCH_ASSOC) ?: [
             'total_in' => 0, 'total_out' => 0, 'active_products' => 0
         ];
@@ -524,7 +524,7 @@ class ReportManager
              WHERE wb.company_id = :company_id
              GROUP BY wb.product_sku, mp.min_stock"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $rows  = $sth->fetchAll(PDO::FETCH_ASSOC);
         $count = 0;
         foreach ($rows as $row) {
@@ -560,7 +560,7 @@ class ReportManager
              ORDER BY month ASC"
         );
         $sth->execute([
-            ':company_id' => $this->companyId,
+            ':company_id' => $this->company_id,
             ':start'      => $start,
             ':end'        => $end,
         ]);
@@ -616,7 +616,7 @@ class ReportManager
              LIMIT {$limit}"
         );
         $sth->execute([
-            ':company_id' => $this->companyId,
+            ':company_id' => $this->company_id,
             ':month'      => $month,
         ]);
         return $sth->fetchAll(PDO::FETCH_ASSOC);
@@ -637,7 +637,7 @@ class ReportManager
              WHERE company_id = :company_id
              ORDER BY month DESC"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         return $sth->fetchAll(PDO::FETCH_COLUMN);
     }
 
@@ -657,7 +657,7 @@ class ReportManager
             "SELECT id, warehouse_name FROM md_warehouse
              WHERE company_id = :company_id AND status = 1"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $warehouses = $sth->fetchAll(PDO::FETCH_ASSOC);
 
         if (empty($warehouses)) return [];
@@ -665,7 +665,7 @@ class ReportManager
         $unions = implode("\nUNION ALL\n", array_map(
             function ($wh) {
                 $table = $this->stockTableNameFromWarehouseId((int)$wh['id']);
-                $cid   = (int) $this->companyId;
+                $cid   = (int) $this->company_id;
                 $warehouse_name = $this->pdo->quote($wh['warehouse_name']);
                 return "SELECT s.date, s.product_sku, s.type,
                             ROUND(COALESCE(s.`in`,  0), 2) AS stock_in,
@@ -721,7 +721,7 @@ class ReportManager
             "SELECT COUNT(*) FROM md_bin
              WHERE company_id = :company_id AND warehouse = :warehouse_id"
         );
-        $sth->execute([':company_id' => $this->companyId, ':warehouse_id' => $warehouse_id]);
+        $sth->execute([':company_id' => $this->company_id, ':warehouse_id' => $warehouse_id]);
         return (int) $sth->fetchColumn();
     }
 
@@ -738,7 +738,7 @@ class ReportManager
              WHERE company_id = :company_id AND warehouse = :warehouse_id
                AND product_sku IS NOT NULL"
         );
-        $sth->execute([':company_id' => $this->companyId, ':warehouse_id' => $warehouse_id]);
+        $sth->execute([':company_id' => $this->company_id, ':warehouse_id' => $warehouse_id]);
         return (int) $sth->fetchColumn();
     }
 
@@ -757,7 +757,7 @@ class ReportManager
              FROM etl_stock_summary
              WHERE company_id = :company_id AND warehouse_id = :warehouse_id"
         );
-        $sth->execute([':company_id' => $this->companyId, ':warehouse_id' => $warehouse_id]);
+        $sth->execute([':company_id' => $this->company_id, ':warehouse_id' => $warehouse_id]);
         return $sth->fetch(PDO::FETCH_ASSOC) ?: ['total_in' => 0, 'total_out' => 0];
     }
 
@@ -783,7 +783,7 @@ class ReportManager
                AND wb.warehouse_id = :warehouse_id
              GROUP BY wb.product_sku, mp.min_stock"
         );
-        $sth->execute([':company_id' => $this->companyId, ':warehouse_id' => $warehouse_id]);
+        $sth->execute([':company_id' => $this->company_id, ':warehouse_id' => $warehouse_id]);
         $rows  = $sth->fetchAll(PDO::FETCH_ASSOC);
         $count = 0;
         foreach ($rows as $row) {
@@ -823,7 +823,7 @@ class ReportManager
             ORDER BY sort_key ASC"
         );
         $sth->execute([
-            ':company_id' => $this->companyId,
+            ':company_id' => $this->company_id,
             ':start'      => $start,
             ':end'        => $end,
         ]);
@@ -870,7 +870,7 @@ class ReportManager
             FROM `{$table}`
             WHERE company_id = :company_id AND status = 1 AND date < :start"
         );
-        $sth->execute([':company_id' => $this->companyId, ':start' => $start]);
+        $sth->execute([':company_id' => $this->company_id, ':start' => $start]);
         $running = (float)$sth->fetchColumn();
 
         $sth = $this->pdo->prepare(
@@ -885,7 +885,7 @@ class ReportManager
             ORDER BY sort_key ASC"
         );
         $sth->execute([
-            ':company_id' => $this->companyId,
+            ':company_id' => $this->company_id,
             ':start'      => $start,
             ':end'        => $end,
         ]);
@@ -935,7 +935,7 @@ class ReportManager
             ORDER BY a.date DESC, a.id DESC
             LIMIT 10"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
 
         $activities = [];
         foreach ($sth->fetchAll(PDO::FETCH_ASSOC) as $row) {
@@ -986,19 +986,19 @@ class ReportManager
                 "SELECT id, warehouse_name FROM md_warehouse
                  WHERE company_id = :company_id AND status = 1 AND id = :warehouse_id"
             );
-            $sth->execute([':company_id' => $this->companyId, ':warehouse_id' => $warehouse_id]);
+            $sth->execute([':company_id' => $this->company_id, ':warehouse_id' => $warehouse_id]);
         } else {
             $sth = $this->pdo->prepare(
                 "SELECT id, warehouse_name FROM md_warehouse
                  WHERE company_id = :company_id AND status = 1"
             );
-            $sth->execute([':company_id' => $this->companyId]);
+            $sth->execute([':company_id' => $this->company_id]);
         }
         $warehouses = $sth->fetchAll(PDO::FETCH_ASSOC);
 
         if (empty($warehouses)) return [];
 
-        $cid = (int) $this->companyId; // cast before interpolation
+        $cid = (int) $this->company_id; // cast before interpolation
 
         $unions = implode("\nUNION ALL\n", array_map(
             function ($wh) use ($cid) {
@@ -1107,7 +1107,7 @@ class ReportManager
             "SELECT id, warehouse_name FROM md_warehouse
             WHERE company_id = :company_id AND status = 1"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $warehouses = $sth->fetchAll(PDO::FETCH_ASSOC);
 
         $rows = [];
@@ -1137,7 +1137,7 @@ class ReportManager
                 ORDER BY s.date DESC"
             );
             $sth->execute([
-                ':company_id'  => $this->companyId,
+                ':company_id'  => $this->company_id,
                 ':product_sku' => $product_sku,
                 ':lot_number'  => $lot_number,
             ]);
@@ -1169,13 +1169,13 @@ class ReportManager
             "SELECT id, warehouse_name FROM md_warehouse
              WHERE company_id = :company_id AND status = 1"
         );
-        $warehouses->execute([':company_id' => $this->companyId]);
+        $warehouses->execute([':company_id' => $this->company_id]);
         $wh_list = $warehouses->fetchAll(PDO::FETCH_ASSOC);
 
         // Build per-lot balance by summing approved td_stock rows across all warehouses.
         // etl_stock_summary is per-product, not per-lot, so we query td_stock directly.
         $lot_balance = [];
-        $cid = (int) $this->companyId;
+        $cid = (int) $this->company_id;
 
         foreach ($wh_list as $wh) {
             $table = $this->stockTableNameFromWarehouseId((int)$wh['id']);
@@ -1211,7 +1211,7 @@ class ReportManager
             WHERE l.company_id = :company_id
             ORDER BY l.product_sku, l.expiry_date ASC"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
 
         $active = $expired = $near = 0;
@@ -1285,7 +1285,7 @@ class ReportManager
             ORDER BY rl.dt DESC"
         );
         $sth->execute([
-            ':company_id' => $this->companyId,
+            ':company_id' => $this->company_id,
             ':bin_id'     => $bin_id,
         ]);
         return $sth->fetchAll(PDO::FETCH_ASSOC);
@@ -1328,7 +1328,7 @@ class ReportManager
                     CAST(r.aisle AS UNSIGNED), r.aisle,
                     CAST(r.bin AS UNSIGNED),  r.bin"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         return $sth->fetchAll(PDO::FETCH_ASSOC);
     }
 
@@ -1353,7 +1353,7 @@ class ReportManager
             FROM etl_stock_summary
             WHERE company_id = :company_id"
         );
-        $sth->execute([':company_id' => $this->companyId]);
+        $sth->execute([':company_id' => $this->company_id]);
         return $sth->fetch(PDO::FETCH_ASSOC) ?: [];
     }
 
@@ -1409,7 +1409,7 @@ class ReportManager
                AND date BETWEEN :date_from AND :date_to
              ORDER BY product_sku ASC"
         );
-        $sth->execute([':company_id' => $this->companyId, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $sth->execute([':company_id' => $this->company_id, ':date_from' => $date_from, ':date_to' => $date_to]);
         $skus = $sth->fetchAll(PDO::FETCH_COLUMN);
 
         // Summary stats across full range
@@ -1423,7 +1423,7 @@ class ReportManager
                AND status = 1
                AND date BETWEEN :date_from AND :date_to"
         );
-        $sth->execute([':company_id' => $this->companyId, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $sth->execute([':company_id' => $this->company_id, ':date_from' => $date_from, ':date_to' => $date_to]);
         $stats = $sth->fetch(PDO::FETCH_ASSOC);
 
         return [
@@ -1477,7 +1477,7 @@ class ReportManager
                AND status = 1
                AND date < :date_from"
         );
-        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku, ':date_from' => $date_from]);
+        $sth->execute([':company_id' => $this->company_id, ':sku' => $product_sku, ':date_from' => $date_from]);
         $bf      = $sth->fetch(PDO::FETCH_ASSOC);
         $bf_in   = (float)($bf['bf_in']  ?? 0);
         $bf_out  = (float)($bf['bf_out'] ?? 0);
@@ -1488,7 +1488,7 @@ class ReportManager
             "SELECT product_name, uom FROM md_product
              WHERE company_id = :company_id AND sku = :sku LIMIT 1"
         );
-        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku]);
+        $sth->execute([':company_id' => $this->company_id, ':sku' => $product_sku]);
         $product_row  = $sth->fetch(PDO::FETCH_ASSOC) ?: [];
         $product_name = $product_row['product_name'] ?: $product_sku;
         $product_uom  = $product_row['uom'] ?? '';
@@ -1538,7 +1538,7 @@ class ReportManager
                AND s.date BETWEEN :date_from AND :date_to
              ORDER BY s.date ASC, s.id ASC"
         );
-        $sth->execute([':company_id' => $this->companyId, ':sku' => $product_sku, ':date_from' => $date_from, ':date_to' => $date_to]);
+        $sth->execute([':company_id' => $this->company_id, ':sku' => $product_sku, ':date_from' => $date_from, ':date_to' => $date_to]);
         $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
 
         // Append running_total and margin to each row.
diff --git a/app/reports/api/engine_report/rack_log.php b/app/reports/api/engine_report/bin_log.php
similarity index 100%
rename from app/reports/api/engine_report/rack_log.php
rename to app/reports/api/engine_report/bin_log.php
diff --git a/app/reports/api/engine_report/rack_occupancy.php b/app/reports/api/engine_report/bin_occupancy.php
similarity index 100%
rename from app/reports/api/engine_report/rack_occupancy.php
rename to app/reports/api/engine_report/bin_occupancy.php
diff --git a/app/reports/occupy_rack.php b/app/reports/occupy_rack.php
index e8aec2f..908745b 100644
--- a/app/reports/occupy_rack.php
+++ b/app/reports/occupy_rack.php
@@ -17,7 +17,7 @@
         <div class="col-12">
           <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center mb-5 gap-3">
             <div>
-              <h1 class="fs-3 mb-1">Rack Occupancy</h1>
+              <h1 class="fs-3 mb-1">Bin Occupancy</h1>
               <p class="mb-0">View occupied and available bin positions across all warehouses</p>
             </div>
           </div>
@@ -34,7 +34,7 @@
                   <i class="ti ti-box-seam fs-4"></i>
                 </div>
                 <div>
-                  <span>Total Racks</span>
+                  <span id="stat_label_bins">Total Bins</span>
                   <h2 class="fw-bold mb-0" id="stat_total">—</h2>
                 </div>
               </div>
@@ -111,7 +111,7 @@
             <div class="card-body p-6">
               <div class="mb-6 d-flex align-items-center justify-content-between">
                 <div>
-                  <h3 class="mb-1 fs-4">All Racks</h3>
+                  <h3 class="mb-1 fs-4">All Bins</h3>
                   <p class="mb-0">Complete bin list across all warehouses</p>
                 </div>
               </div>
@@ -131,7 +131,7 @@
                       <th>Warehouse</th>
                       <th class="th_loc_zone">Zone</th>
                       <th class="th_loc_aisle">Aisle</th>
-                      <th class="th_loc_bin">Rack</th>
+                      <th class="th_loc_bin">Bin</th>
                       <th>SKU</th>
                       <th>Product</th>
                       <th>Status</th>
@@ -154,8 +154,8 @@
             <div class="card-body p-6">
               <div class="mb-6 d-flex align-items-center justify-content-between">
                 <div>
-                  <h3 class="mb-1 fs-4">Occupied Racks</h3>
-                  <p class="mb-0">Racks currently holding stock</p>
+                  <h3 class="mb-1 fs-4">Occupied Bins</h3>
+                  <p class="mb-0">Bins currently holding stock</p>
                 </div>
               </div>
               <div class="col-lg-12 mb-5">
@@ -174,7 +174,7 @@
                       <th>Warehouse</th>
                       <th class="th_loc_zone">Zone</th>
                       <th class="th_loc_aisle">Aisle</th>
-                      <th class="th_loc_bin">Rack</th>
+                      <th class="th_loc_bin">Bin</th>
                       <th>SKU</th>
                       <th>Product</th>
                       <th>Action</th>
@@ -196,8 +196,8 @@
             <div class="card-body p-6">
               <div class="mb-6 d-flex align-items-center justify-content-between">
                 <div>
-                  <h3 class="mb-1 fs-4">Available Racks</h3>
-                  <p class="mb-0">Empty racks ready to receive stock</p>
+                  <h3 class="mb-1 fs-4">Available Bins</h3>
+                  <p class="mb-0">Empty bins ready to receive stock</p>
                 </div>
               </div>
               <div class="col-lg-12 mb-5">
@@ -216,7 +216,7 @@
                       <th>Warehouse</th>
                       <th class="th_loc_zone">Zone</th>
                       <th class="th_loc_aisle">Aisle</th>
-                      <th class="th_loc_bin">Rack</th>
+                      <th class="th_loc_bin">Bin</th>
                       <th>Action</th>
                     </tr>
                   </thead>