diff --git a/app/Http/Controllers/PdfController.php b/app/Http/Controllers/PdfController.php
index 2e6c49d..f4d2541 100644
--- a/app/Http/Controllers/PdfController.php
+++ b/app/Http/Controllers/PdfController.php
@@ -862,10 +862,35 @@ class PdfController extends Controller
             ->sum('received_quantity');
 
         if ($orderQty == 0) {
-            $orderQty = ProcessOrder::where('plant_id', $plantId)
+            $orderExist = ProcessOrder::where('plant_id', $plantId)
                 ->where('process_order', $processOrder)
-                ->where('item_id', $itemId)
-                ->value('order_quantity') ?? 0;
+                ->where('item_id', $itemId)->latest()->first();
+            // ->value('order_quantity') ?? 0;
+
+            if ($orderExist) {
+                $orderQty = $orderExist->order_quantity ?? 0;
+            } else {
+                return response()->json([
+                    'status_code' => 'ERROR',
+                    'status_description' => "Order quantity can't be '0'",
+                ], 404);
+            }
+        } else {
+            $orderExist = ProcessOrder::where('plant_id', $plantId)
+                ->where('process_order', $processOrder)
+                ->where('item_id', $itemId)->latest()->first();
+            // ->value('order_quantity') ?? 0;
+
+            if ($orderExist) {
+                $existOrderQty = $orderExist->order_quantity ?? 0;
+
+                if ($existOrderQty != $orderQty) {
+                    return response()->json([
+                        'status_code' => 'ERROR',
+                        'status_description' => "Order quantity doesn't equal to exist process order '{$processOrder}'",
+                    ], 404);
+                }
+            }
         }
 
         $total = $alreadyReceived + $receivedQty;