diff --git a/hb_server/apps/sam/serializers.py b/hb_server/apps/sam/serializers.py
index 320ceed..b28a913 100644
--- a/hb_server/apps/sam/serializers.py
+++ b/hb_server/apps/sam/serializers.py
@@ -1,3 +1,4 @@
+from django.db import transaction
 from rest_framework import serializers
 
 from apps.inm.models import IProduct
@@ -71,6 +72,7 @@ class SaleCreateSerializer(serializers.ModelSerializer):
             attrs['product'] = order.product
         return super().validate(attrs)
 
+    @transaction.atomic
     def create(self, validated_data):
         iproducts = validated_data.pop('iproducts')
         sale = Sale.objects.create(**validated_data)