diff --git a/webapp/controller/KefuController.class.php b/webapp/controller/KefuController.class.php
index efa8bcc..a2d25c2 100644
--- a/webapp/controller/KefuController.class.php
+++ b/webapp/controller/KefuController.class.php
@@ -216,6 +216,8 @@ class KefuController {
             $url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=" . urlencode($access_token);
 
             $response = '';
+            error_log('kefu_openid');
+            error_log(json_encode($data, JSON_UNESCAPED_UNICODE));
             if (!phpcommon\HttpClient::post($url,
                                             json_encode($data, JSON_UNESCAPED_UNICODE),
                                             $response)
@@ -233,6 +235,7 @@ class KefuController {
                 $url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=$access_token";
 
                 $response = '';
+                error_log(json_encode($data, JSON_UNESCAPED_UNICODE));
                 if (!phpcommon\HttpClient::post($url,
                                                 json_encode($data, JSON_UNESCAPED_UNICODE),
                                                 $response)