diff --git a/order-management-common/src/main/java/com/dxhy/order/constant/OrderInfoContentEnum.java b/order-management-common/src/main/java/com/dxhy/order/constant/OrderInfoContentEnum.java
index 50e90178..f723feb5 100644
--- a/order-management-common/src/main/java/com/dxhy/order/constant/OrderInfoContentEnum.java
+++ b/order-management-common/src/main/java/com/dxhy/order/constant/OrderInfoContentEnum.java
@@ -1384,7 +1384,7 @@ public enum OrderInfoContentEnum {
     CHECK_ISS7PRI_115042("115042", "发票行性质为空"),
     CHECK_ISS7PRI_115043("115043", "商品编码为空"),
     CHECK_ISS7PRI_115044("115044", "商品编码长度有误,最大长度为19位"),
-    CHECK_ISS7PRI_115045("115045", "自行编码长度有误,最大长度为16位"),
+    CHECK_ISS7PRI_115045("115045", "自行编码长度有误,最大长度为20位"),
     CHECK_ISS7PRI_115046("115046", "优惠政策标识为空"),
     CHECK_ISS7PRI_115047("115047", "零税率标识不合法,空：非零税率,0:出口零税,1：免税,2：不征税 3:普通零税率"),
     CHECK_ISS7PRI_115048("115048", "增值税特殊管理", 0, 50, true, false),
diff --git a/order-management-consumer/src/main/java/com/dxhy/order/consumer/modules/validate/service/impl/ValidateSpecialInvoiceServiceImpl.java b/order-management-consumer/src/main/java/com/dxhy/order/consumer/modules/validate/service/impl/ValidateSpecialInvoiceServiceImpl.java
index ff0aca9b..744939ee 100644
--- a/order-management-consumer/src/main/java/com/dxhy/order/consumer/modules/validate/service/impl/ValidateSpecialInvoiceServiceImpl.java
+++ b/order-management-consumer/src/main/java/com/dxhy/order/consumer/modules/validate/service/impl/ValidateSpecialInvoiceServiceImpl.java
@@ -424,7 +424,7 @@ public class ValidateSpecialInvoiceServiceImpl implements ValidateSpecialInvoice
 
                     //自行编码
                     if (!StringUtils.isBlank(ddmxxx1.getZXBM())) {
-                        if (ddmxxx1.getZXBM().length() > 16) {
+                        if (ddmxxx1.getZXBM().length() > 20) {
                             return CheckParamUtil.generateErrorMap(null, "", OrderInfoContentEnum.CHECK_ISS7PRI_115045);
                         }
                     }