diff --git a/erp/sale/product.go b/erp/sale/product.go
index 90e8851..49e2abb 100644
--- a/erp/sale/product.go
+++ b/erp/sale/product.go
@@ -246,6 +246,7 @@ type ReplyProductInfo struct {
 	Mold                  int64                `json:"mold"`
 	MoldCount             int64                `json:"moldCount"`
 	Serial                string               `json:"serial"`
+	Po                    string               `json:"po"`
 	CustomSerial          string               `json:"customSerial"`
 	Name                  string               `json:"name"`
 	EngName               string               `json:"engName"`