diff --git a/backend/api/account/client/views.py b/backend/api/account/client/views.py
index 318f930..9c3afec 100644
--- a/backend/api/account/client/views.py
+++ b/backend/api/account/client/views.py
@@ -185,15 +185,25 @@ class ChangeUserMembership(ViewSet):
         user = request.user
         user_profile = get_object_or_404(UserProfile, user=user)
         
-        # преобразуем plan в account_type если нужно
+        # преобразуем plan в account_type
         if 'plan' in request.data and 'account_type' not in request.data:
             request.data['account_type'] = request.data['plan']
             
+        if 'account_type' not in request.data:
+            return Response({
+                "error": "Не указан тарифный план",
+                "details": "Необходимо указать plan или account_type"
+            }, status=status.HTTP_400_BAD_REQUEST)
+            
         serializer = PlanChangeSerializer(user_profile, data=request.data)
             
-        if serializer.is_valid():
-            # получаем объект тарифного плана
-            new_plan = get_object_or_404(Pricing, plan=serializer.validated_data['account_type'])
+        try:
+            if not serializer.is_valid():
+                return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+                
+            account_type = request.data['account_type']
+            # получаем тарифный план
+            new_plan = get_object_or_404(Pricing, plan=account_type)
             
             # создаем транзакцию
             transaction = Transactions.objects.create(
@@ -208,8 +218,14 @@ class ChangeUserMembership(ViewSet):
                 serializer.save()
                 return Response({
                     "message": "Тариф успешно изменен",
-                    "account_type": serializer.validated_data['account_type']
+                    "account_type": new_plan.plan
                 }, status=status.HTTP_200_OK)
+                
+        except Exception as e:
+            return Response({
+                "error": "Ошибка при изменении тарифного плана",
+                "details": str(e)
+            }, status=status.HTTP_400_BAD_REQUEST)
             
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
diff --git a/backend/sitemanagement/admin.py b/backend/sitemanagement/admin.py
index a501ff4..af56a70 100644
--- a/backend/sitemanagement/admin.py
+++ b/backend/sitemanagement/admin.py
@@ -15,3 +15,4 @@ class PricingAdmin(admin.ModelAdmin):
 
 admin.site.register(FAQ)
 admin.site.register(News)
+admin.site.register(Transactions)
diff --git a/backend/sitemanagement/migrations/0019_alter_transactions_created_at.py b/backend/sitemanagement/migrations/0019_alter_transactions_created_at.py
new file mode 100644
index 0000000..4e8c7c8
--- /dev/null
+++ b/backend/sitemanagement/migrations/0019_alter_transactions_created_at.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.2.1 on 2025-05-30 11:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sitemanagement', '0018_alter_pricing_highlight_limit_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='transactions',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, choices=[('success', 'Успешно'), ('failed', 'Отклонено')], verbose_name='Дата создания'),
+        ),
+    ]
diff --git a/backend/sitemanagement/migrations/0020_alter_transactions_created_at_and_more.py b/backend/sitemanagement/migrations/0020_alter_transactions_created_at_and_more.py
new file mode 100644
index 0000000..8a49112
--- /dev/null
+++ b/backend/sitemanagement/migrations/0020_alter_transactions_created_at_and_more.py
@@ -0,0 +1,23 @@
+# Generated by Django 5.2.1 on 2025-05-30 15:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sitemanagement', '0019_alter_transactions_created_at'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='transactions',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, verbose_name='Дата создания'),
+        ),
+        migrations.AlterField(
+            model_name='transactions',
+            name='status',
+            field=models.CharField(choices=[('success', 'Успешно'), ('failed', 'Отклонено')], max_length=255, verbose_name='Статус'),
+        ),
+    ]
diff --git a/backend/sitemanagement/models.py b/backend/sitemanagement/models.py
index 9d6fdfa..7ad2ee7 100644
--- a/backend/sitemanagement/models.py
+++ b/backend/sitemanagement/models.py
@@ -91,7 +91,7 @@ class Transactions(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE, verbose_name='Пользователь')
     amount = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='Сумма')
     plan = models.ForeignKey(Pricing, on_delete=models.CASCADE, verbose_name='Тарифный план')
-    status = models.CharField(max_length=255, verbose_name='Статус')
+    status = models.CharField(max_length=255, verbose_name='Статус', choices=[('success', 'Успешно'), ('failed', 'Отклонено')])
     created_at = models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')
     
     class Meta: