diff --git a/app/Http/Controllers/Admin/ConditionalOrderController.php b/app/Http/Controllers/Admin/ConditionalOrderController.php
index b7ae481..559b811 100644
--- a/app/Http/Controllers/Admin/ConditionalOrderController.php
+++ b/app/Http/Controllers/Admin/ConditionalOrderController.php
@@ -9,6 +9,7 @@ use App\Models\Customer;
 use App\Models\Product;
 use App\Services\ConditionalOrderService;
 use App\Services\ConfigService;
+use App\Support\ConditionalOrderValidation;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
 use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
@@ -105,7 +106,11 @@ class ConditionalOrderController extends Controller
             'is_active' => 'sometimes|boolean',
         ];
 
-        $data = $request->validate($rules);
+        $data = $request->validate(
+            $rules,
+            ConditionalOrderValidation::messages(),
+            ConditionalOrderValidation::attributes()
+        );
 
         $productId = (int) ($data['product_id'] ?? $request->input('product_id') ?? 0);
         $product = $productId > 0 ? Product::find($productId) : null;
@@ -119,6 +124,18 @@ class ConditionalOrderController extends Controller
             }
         }
 
+        if (! empty($data['expires_at'])) {
+            try {
+                $expires = \Illuminate\Support\Carbon::parse($data['expires_at']);
+            } catch (\Throwable $e) {
+                throw new UnprocessableEntityHttpException('زمان اعتبار تاریخ معتبری نیست.');
+            }
+            if ($expires->lte(now())) {
+                throw new UnprocessableEntityHttpException('زمان اعتبار باید بعد از الان باشد.');
+            }
+            $data['expires_at'] = $expires->format('Y-m-d H:i:s');
+        }
+
         if ($product && $amount !== null && $amount > 0 && ($number === null || $number <= 0)) {
             $unit = (float) ($product->amount ?? 0);
             if ($unit > 0 && ! in_array(trim((string) ($product->group_type ?? '')), ['آبشده', 'کاتد مس'], true)
diff --git a/app/Http/Controllers/Customer/ConditionalOrderController.php b/app/Http/Controllers/Customer/ConditionalOrderController.php
index ebee992..178add0 100644
--- a/app/Http/Controllers/Customer/ConditionalOrderController.php
+++ b/app/Http/Controllers/Customer/ConditionalOrderController.php
@@ -8,6 +8,7 @@ use App\Models\Customer;
 use App\Models\Product;
 use App\Services\ConditionalOrderService;
 use App\Services\ConfigService;
+use App\Support\ConditionalOrderValidation;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
 use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
@@ -128,12 +129,16 @@ class ConditionalOrderController extends Controller
             'trigger_price' => ($partial ? 'sometimes|' : '') . 'required|numeric|min:1',
             'amount' => 'nullable|numeric|min:0',
             'number' => 'nullable|numeric|min:0',
-            'expires_at' => 'nullable|date|after:now',
+            'expires_at' => 'nullable|date',
             'description' => 'nullable|string|max:2000',
             'is_active' => 'sometimes|boolean',
         ];
 
-        $data = $request->validate($rules);
+        $data = $request->validate(
+            $rules,
+            ConditionalOrderValidation::messages(),
+            ConditionalOrderValidation::attributes()
+        );
 
         $amount = isset($data['amount']) ? (float) $data['amount'] : null;
         $number = isset($data['number']) ? (float) $data['number'] : null;
@@ -142,6 +147,18 @@ class ConditionalOrderController extends Controller
             throw new UnprocessableEntityHttpException('مقدار گرم یا تعداد را وارد کنید.');
         }
 
+        if (! empty($data['expires_at'])) {
+            try {
+                $expires = \Illuminate\Support\Carbon::parse($data['expires_at']);
+            } catch (\Throwable $e) {
+                throw new UnprocessableEntityHttpException('زمان اعتبار تاریخ معتبری نیست.');
+            }
+            if ($expires->lte(now())) {
+                throw new UnprocessableEntityHttpException('زمان اعتبار باید بعد از الان باشد.');
+            }
+            $data['expires_at'] = $expires->format('Y-m-d H:i:s');
+        }
+
         $productId = (int) ($data['product_id'] ?? $request->input('product_id') ?? 0);
         $product = $productId > 0 ? Product::find($productId) : null;
         if ($product && $amount !== null && $amount > 0 && ($number === null || $number <= 0)) {
diff --git a/app/Support/ConditionalOrderValidation.php b/app/Support/ConditionalOrderValidation.php
new file mode 100644
index 0000000..53f7a56
--- /dev/null
+++ b/app/Support/ConditionalOrderValidation.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Support;
+
+class ConditionalOrderValidation
+{
+    public static function messages(): array
+    {
+        return [
+            'required' => ':attribute الزامی است.',
+            'integer' => ':attribute باید عدد صحیح باشد.',
+            'numeric' => ':attribute باید عدد باشد.',
+            'min.numeric' => ':attribute نباید کمتر از :min باشد.',
+            'min.string' => ':attribute نباید کمتر از :min کاراکتر باشد.',
+            'max.string' => ':attribute نباید بیشتر از :max کاراکتر باشد.',
+            'in' => ':attribute انتخاب‌شده نامعتبر است.',
+            'boolean' => ':attribute باید صحیح یا غلط باشد.',
+            'date' => ':attribute تاریخ معتبری نیست.',
+            'after' => ':attribute باید بعد از الان باشد.',
+            'exists' => ':attribute انتخاب‌شده معتبر نیست.',
+            'string' => ':attribute باید متن باشد.',
+            'nullable' => '',
+        ];
+    }
+
+    public static function attributes(): array
+    {
+        return [
+            'customer_id' => 'مشتری',
+            'product_id' => 'محصول',
+            'direction' => 'جهت معامله',
+            'price_condition' => 'شرط اجرا',
+            'trigger_price' => 'مظنه هدف',
+            'amount' => 'مقدار',
+            'number' => 'تعداد',
+            'expires_at' => 'زمان اعتبار',
+            'description' => 'توضیحات',
+            'is_active' => 'وضعیت فعال',
+        ];
+    }
+}