diff --git a/app/Http/Controllers/CharacteristicsController.php b/app/Http/Controllers/CharacteristicsController.php
index 0e69378..1c8182e 100644
--- a/app/Http/Controllers/CharacteristicsController.php
+++ b/app/Http/Controllers/CharacteristicsController.php
@@ -3176,7 +3176,7 @@ class CharacteristicsController extends Controller
         if (! $mNameAgaWorkCenter) {
             return response()->json([
                 'status_code' => 'ERROR',
-                'status_description' => "Machine name '{$machineName}' not found for the work center '{$workCenter}' in characteristic approver master!",
+                'status_description' => "Machine name '{$machineName}' and work center '{$workCenter}' not found in characteristic approver master!",
             ], 404);
         }
 
diff --git a/app/Models/CharacteristicApproverMaster.php b/app/Models/CharacteristicApproverMaster.php
index d4c0e07..77020bd 100644
--- a/app/Models/CharacteristicApproverMaster.php
+++ b/app/Models/CharacteristicApproverMaster.php
@@ -14,6 +14,7 @@ class CharacteristicApproverMaster extends Model
         'plant_id',
         'machine_id',
         'machine_name',
+        'characteristic_field',
         'name1',
         'mail1',
         'name2',
@@ -23,8 +24,6 @@ class CharacteristicApproverMaster extends Model
         'duration1',
         'duration2',
         'duration3',
-        'characteristic_field',
-
         'created_at',
         'updated_at',
         'created_by',
diff --git a/app/Models/WeightValidation.php b/app/Models/WeightValidation.php
index a475d60..8d07c5d 100644
--- a/app/Models/WeightValidation.php
+++ b/app/Models/WeightValidation.php
@@ -25,6 +25,8 @@ class WeightValidation extends Model
         'bundle_number',
         'picked_weight',
         'scanned_by',
+        'created_at',
+        'updated_at',
     ];
 
     public function plant(): BelongsTo