diff --git a/app/Filament/Resources/ClassCharacteristicResource.php b/app/Filament/Resources/ClassCharacteristicResource.php
index 2bdad6e4..3db63ef2 100644
--- a/app/Filament/Resources/ClassCharacteristicResource.php
+++ b/app/Filament/Resources/ClassCharacteristicResource.php
@@ -3755,19 +3755,26 @@ class ClassCharacteristicResource extends Resource
                                     $updateModelTypeCount = '3';
                                 }
 
-                                $record = ClassCharacteristic::create([
+                                // $record = ClassCharacteristic::create([
+                                $record = ClassCharacteristic::updateOrCreate(
+                                [
                                     'plant_id' => $plantId,
+                                    'gernr' => $serialNumber,
+                                ],
+                                [
+                                    // 'plant_id' => $plantId,
                                     'item_id' => $item->id,
                                     'machine_id' => $machine->id,
                                     'aufnr' => $pOrder,
                                     'gamng' => $orderQuan.'.000',
                                     'lmnga' => $releaseQuan,
-                                    'gernr' => $serialNumber,
+                                    // 'gernr' => $serialNumber,
                                     'motor_pump_pumpset_status' => $updateModelTypeCount,
                                     'marked_by' => $userName,
                                     'marked_datetime' => now(),
                                     'created_by' => $userName,
                                     'updated_by' => $userName,
+                                    'class' => $itemCharacMaster->class,
                                     'zz1_cn_bill_ord' => $itemCharacMaster->zz1_cn_bill_ord,
                                     'zmm_amps' => $itemCharacMaster->zmm_amps,
                                     'zmm_brand' => $itemCharacMaster->zmm_brand,