diff --git a/apps/authorization/api/v1/serializers.py b/apps/authorization/api/v1/serializers.py
index e332f6d..33fd777 100644
--- a/apps/authorization/api/v1/serializers.py
+++ b/apps/authorization/api/v1/serializers.py
@@ -96,7 +96,7 @@ class RoleSerializer(serializers.ModelSerializer):
         representation['type'] = auth_serializer.OrganizationTypeSerializer(instance.type).data
         if instance.permissions:  # noqa
             permissions = instance.permissions.filter(is_active=True)
-            representation['permissions'] = PermissionSerializer().permissions_structure_output(permissions)
+            representation['permissions'] = PermissionSerializer(permissions, many=True).data
         return representation
 
 
diff --git a/apps/product/apps.py b/apps/product/apps.py
index cb72851..427f54b 100644
--- a/apps/product/apps.py
+++ b/apps/product/apps.py
@@ -4,3 +4,6 @@ from django.apps import AppConfig
 class ProductConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'apps.product'
+
+    def ready(self):
+        import apps.product.signals
diff --git a/apps/product/models.py b/apps/product/models.py
index 6049b36..260392e 100644
--- a/apps/product/models.py
+++ b/apps/product/models.py
@@ -64,10 +64,22 @@ class Product(BaseModel):
         null=True
     )
 
+    def generate_product_id(self):  # noqa
+        """ generate id for product from 10 """
+
+        last = Product.objects.filter(product_id__gte=10, product_id__lte=1999).order_by('-product_id').first()
+        if last:
+            next_code = last.product_id + 1
+        else:
+            next_code = 10
+        return next_code
+
     def __str__(self):
         return f'name: {self.name} - type: {self.type}'
 
     def save(self, *args, **kwargs):
+        if not self.product_id:
+            self.product_id = self.generate_product_id()  # set product id
         super(Product, self).save(*args, **kwargs)