diff --git a/ik3cloud/payable.go b/ik3cloud/payable.go
index 49142b7..bb17dff 100644
--- a/ik3cloud/payable.go
+++ b/ik3cloud/payable.go
@@ -37,6 +37,7 @@ type PayableProductItem struct {
 	ExTaxUnitAmount decimal.Decimal // 不含税金额
 	CostAmount      decimal.Decimal // 加减费用金额
 	Unit            string          // 单位
+	CustomsSerial   string          // 海关编码
 }
 
 // Save @TITLE 保存应付
diff --git a/ik3cloud/receivable.go b/ik3cloud/receivable.go
index 577f1da..eac698e 100644
--- a/ik3cloud/receivable.go
+++ b/ik3cloud/receivable.go
@@ -42,6 +42,7 @@ type ReceivableProductItem struct {
 	MinusTaxAmount     decimal.Decimal // 退税额
 	Unit               string          // 单位
 	MinusTaxDifference decimal.Decimal // 退税差额
+	CustomsSerial      string          // 海关编码
 }
 
 // Save @TITLE 保存应收