diff --git a/app/Filament/Imports/ProductionPlanImporter.php b/app/Filament/Imports/ProductionPlanImporter.php
index 10e6b06..95822a7 100644
--- a/app/Filament/Imports/ProductionPlanImporter.php
+++ b/app/Filament/Imports/ProductionPlanImporter.php
@@ -158,8 +158,20 @@ class ProductionPlanImporter extends Importer
 
             if ($productionPlan) {
 
+                $recordDate = now();
+                $month = $recordDate->month;
+                $year = $recordDate->year;
+
+                $previousRecord = ProductionPlan::where('plant_id', $plant->id)
+                    ->whereMonth('created_at', $month)
+                    ->whereYear('created_at', $year)
+                    ->first();
+
+                $workingDays = $previousRecord?->working_days ?? null;
+
                 $productionPlan->update([
                     'plan_quantity' => $this->data['plan_quantity'],
+                    'working_days' => $workingDays,
                     'operator_id' => $operatorName,
                 ]);
                 $productionPlan->save();
@@ -168,12 +180,24 @@ class ProductionPlanImporter extends Importer
             }
         }
 
+        $recordDate = now();
+        $month = $recordDate->month;
+        $year = $recordDate->year;
+
+        $previousRecord = ProductionPlan::where('plant_id', $plant->id)
+            ->whereMonth('created_at', $month)
+            ->whereYear('created_at', $year)
+            ->first();
+
+        $workingDays = $previousRecord?->working_days ?? null;
+
         ProductionPlan::updateOrCreate([
             'plant_id' => $plant->id,
             'line_id' => $line->id,
             'item_id' => $itemAgaPlant->id,
             // 'shift_id' => $shift->id,
             'plan_quantity' => $this->data['plan_quantity'],
+            'working_days' => $workingDays,
             'created_at' =>now(),
             'updated_at' => now(),
             'operator_id' => $operatorName,