diff --git a/core/models.py b/core/models.py
index dd0054e3..9d5419de 100644
--- a/core/models.py
+++ b/core/models.py
@@ -1831,7 +1831,7 @@ class CustomerRelationshipManagementProvider(ExportModelOperationsMixin("crm_pro
         verbose_name_plural = _("CRMs")
 
 
-class OrderCrmLink(ExportModelOperationsMixin("order_crm_link"), NiceModel):
+class OrderCrmLink(ExportModelOperationsMixin("order_crm_link"), NiceModel):  # type: ignore
     order = ForeignKey(to=Order, on_delete=PROTECT, related_name="crm_links")
     crm = ForeignKey(to=CustomerRelationshipManagementProvider, on_delete=PROTECT, related_name="order_links")
     crm_lead_id = CharField(max_length=30, unique=True, db_index=True)
diff --git a/core/serializers/utility.py b/core/serializers/utility.py
index e7be7054..ec855c61 100644
--- a/core/serializers/utility.py
+++ b/core/serializers/utility.py
@@ -177,6 +177,7 @@ class BuyUnregisteredOrderSerializer(Serializer):
 class BuyAsBusinessOrderSerializer(Serializer):
     products = AddOrderProductSerializer(many=True, required=True)
     business_identificator = CharField(required=True)
+    promocode_uuid = UUIDField(required=False)
     business_email = CharField(required=True)
     business_phone_number = CharField(required=True)
     billing_business_address_uuid = CharField(required=False)
diff --git a/core/views.py b/core/views.py
index 278c53da..3b6bec4c 100644
--- a/core/views.py
+++ b/core/views.py
@@ -455,7 +455,7 @@ class BuyAsBusinessView(APIView):
             order.save()
             return Response(
                 status=status.HTTP_400_BAD_REQUEST,
-                data={"error": str(e)},
+                data={"detail": str(e)},
             )
 
 
diff --git a/core/viewsets.py b/core/viewsets.py
index 4165d148..9b99fe07 100644
--- a/core/viewsets.py
+++ b/core/viewsets.py
@@ -846,17 +846,20 @@ class OrderViewSet(EvibesViewSet):
         serializer.is_valid(raise_exception=True)
         order = Order.objects.create(status="MOMENTAL")
         products = [p["product_uuid"] for p in serializer.validated_data["products"]]
-        transaction = order.buy_without_registration(
-            products=products,
-            promocode_uuid=serializer.validated_data.get("promocode_uuid"),
-            customer_name=serializer.validated_data.get("customer_name"),
-            customer_email=serializer.validated_data.get("customer_email"),
-            customer_phone_number=serializer.validated_data.get("customer_phone_number"),
-            billing_customer_address=serializer.validated_data.get("billing_customer_address_uuid"),
-            shipping_customer_address=serializer.validated_data.get("shipping_customer_address_uuid"),
-            payment_method=serializer.validated_data.get("payment_method"),
-        )
-        return Response(status=status.HTTP_202_ACCEPTED, data=TransactionProcessSerializer(transaction).data)
+        try:
+            transaction = order.buy_without_registration(
+                products=products,
+                promocode_uuid=serializer.validated_data.get("promocode_uuid"),
+                customer_name=serializer.validated_data.get("customer_name"),
+                customer_email=serializer.validated_data.get("customer_email"),
+                customer_phone_number=serializer.validated_data.get("customer_phone_number"),
+                billing_customer_address=serializer.validated_data.get("billing_customer_address_uuid"),
+                shipping_customer_address=serializer.validated_data.get("shipping_customer_address_uuid"),
+                payment_method=serializer.validated_data.get("payment_method"),
+            )
+            return Response(status=status.HTTP_201_CREATED, data=TransactionProcessSerializer(transaction).data)
+        except Exception as e:
+            return Response(status=status.HTTP_400_BAD_REQUEST, data={"detail": str(e)})
 
     @action(detail=True, methods=["post"], url_path="add_order_product")
     def add_order_product(self, request, **kwargs):