diff --git a/partner-cjk.js b/partner-cjk.js
index c399551..6e3adca 100644
--- a/partner-cjk.js
+++ b/partner-cjk.js
@@ -68,6 +68,8 @@ function createXmlPayload(params) {
 function getSNFromMessage(message) {
     try {
         var sn_match = message.match(/SN: (\w+)/);
+        
+        logger.verbose('Got SN: ' + sn_match[1]);
         return sn_match[1];
     }
     catch(err) {