diff --git a/sf_manufacturing/models/sale_order.py b/sf_manufacturing/models/sale_order.py
index 225f6fe5..c8cc129d 100644
--- a/sf_manufacturing/models/sale_order.py
+++ b/sf_manufacturing/models/sale_order.py
@@ -163,7 +163,7 @@ class SaleOrder(models.Model):
                                                                                                     'purchase',
                                                                                                     product_seria,
                                                                                                     product)
-                        if purchase_embryo == -3:
+                        if purchase_embryo and purchase_embryo == -3:
                             raise UserError('该订单模型的材料型号暂未设置获取方式和供应商,请先配置再进行分配')
                         else:
                             # 产品配置bom