diff --git a/dp2weixin.service/dp2WeiXinService.cs b/dp2weixin.service/dp2WeiXinService.cs
index ba9a41d8..782579f3 100644
--- a/dp2weixin.service/dp2WeiXinService.cs
+++ b/dp2weixin.service/dp2WeiXinService.cs
@@ -3452,9 +3452,13 @@ private int SendArrived(XmlDocument bodyDom,
                 //    && string.IsNullOrEmpty(lib.comment) == false
                 //    && lib.comment.IndexOf("OnshelfArrivedNoNotice") != -1)
 
+                // 2024/1/15 修改
+                if (lib.IsSendArrivedNotice == null)
+                    lib.IsSendArrivedNotice = "Y";
+
                 // //2020/3/22 改为直接使用变量
                 // 2023/11/2 改为一个丰富信息的字符串
-                if (lib.IsSendArrivedNotice.Contains("N") == true) 
+                if (lib.IsSendArrivedNotice != null && lib.IsSendArrivedNotice.Contains("N") == true) 
                 {
 
                     if (lib.IsSendArrivedNotice == "N")