diff --git a/app/Filament/Imports/PanelGrMasterImporter.php b/app/Filament/Imports/PanelGrMasterImporter.php
index bbfb363..9595606 100644
--- a/app/Filament/Imports/PanelGrMasterImporter.php
+++ b/app/Filament/Imports/PanelGrMasterImporter.php
@@ -51,6 +51,12 @@ class PanelGrMasterImporter extends Importer
                 ->example('154564564')
                 ->label('Supplier Number')
                 ->rules(['required']),
+            ImportColumn::make('inspection_lot_number')
+                ->requiredMapping()
+                ->exampleHeader('Inspection Lot Number')
+                ->example('154564564')
+                ->label('Inspection Lot Number')
+                ->rules(['required']),
             ImportColumn::make('quantity')
                 ->requiredMapping()
                 ->exampleHeader('Quantity')
@@ -86,14 +92,21 @@ class PanelGrMasterImporter extends Importer
             $warnMsg[] = 'Document Number cannot be empty.';
         }
 
-        if (Str::length($this->data['invoice_number']) < 7 || ! ctype_alnum($this->data['invoice_number'])) {
-            $warnMsg[] = 'Invalid invoice number found';
-        }
+        // if (Str::length($this->data['invoice_number']) < 7 || ! ctype_alnum($this->data['invoice_number'])) {
+        //     $warnMsg[] = 'Invalid invoice number found';
+        // }
 
         if (empty($this->data['supplier_number'])) {
             $warnMsg[] = 'Supplier Number cannot be empty.';
         }
 
+        if (empty($this->data['inspection_lot_number'])) {
+            $warnMsg[] = 'Inspection Lot Number cannot be empty.';
+        }
+        if (!is_numeric($this->data['inspection_lot_number'])) {
+            $warnMsg[] = 'Inspection Lot Number must be a valid number.';
+        }
+
         if (empty($this->data['quantity'])) {
             $warnMsg[] = 'Quantity cannot be empty.';
         }
@@ -121,6 +134,7 @@ class PanelGrMasterImporter extends Importer
                 'document_number' => $this->data['document_number'],
                 'invoice_number' => $this->data['invoice_number'],
                 'supplier_number' => $this->data['supplier_number'] ?? null,
+                'inspection_lot_number' => $this->data['inspection_lot_number'] ?? null,
             ],
             [
                 'quantity' => $this->data['quantity'] ?? null,