diff --git a/partner-otomax.js b/partner-otomax.js
index d29f6ff..6c6fc1e 100644
--- a/partner-otomax.js
+++ b/partner-otomax.js
@@ -152,6 +152,13 @@ function parseMessage(task, message) {
         rc = '40';
     }
 
+    if (rc == '00') {
+        let sn = parseSn(message, config.h2h_out.sn_pattern);
+        if (sn) {
+            message = "SN=" + sn + ";" + message;
+        }
+    }
+
     callbackReport(requestId, rc, message);
 }
 
@@ -203,6 +210,21 @@ function createReverseHttpServer() {
     });
 }
 
+function parseSn(message, pattern) {
+
+    try {
+        let sn_regex = new RegExp(pattern);
+        let sn_match = message.match(sn_regex);
+
+        return sn_match[1].trim();
+    }
+    catch(e) {
+        return;
+    }
+
+}
+
 exports.start = start;
 exports.topupRequest = topupRequest;
 exports.generateSign = generateSign;
+exports.parseSn = parseSn;
diff --git a/test.js b/test.js
index 4e13451..f034252 100644
--- a/test.js
+++ b/test.js
@@ -7,4 +7,10 @@ describe ('#partner', function() {
             partner.generateSign('YUSUF', 'XX10', '08123456789', '2140669', '1144', 'abcd').should.equal('vlrN9Yuu4xHAT8_bXIUHKw2NjHo=');
         })
     });
+
+    describe('parseSn', function() {
+        it('should return correct sn', function() {
+            partner.parseSn("TrxID:#451318 TN10.08128364883 SUKSES. SN: 41000905936059.  Saldo Rp-20.420 - 10.210 = Rp-30.630 ctr:1 RS:HTH049BSI @2016-06-10 08:11:04 PrintStruk: http://27.111.44.196/report/ Add HANGOUT trxtuj@gmail.com By Holic Reload", "SN: (\\d+)\\.").should.equal("41000905936059");
+        })
+    });
 });