diff --git a/src/transaction/transaction.service.ts b/src/transaction/transaction.service.ts
index 87160b1..100cf60 100644
--- a/src/transaction/transaction.service.ts
+++ b/src/transaction/transaction.service.ts
@@ -1488,7 +1488,17 @@ export class TransactionService {
             responseBaru[10].length > 1 ? responseBaru[10] : responseBaru[9];
 
         if (dataTransaction.seri_number == 'SN:') {
-          dataTransaction.seri_number = responseBaru[11];
+          const s = 'SN: '
+          const index = response.indexOf(s);
+          const subIndex = index + s.length;
+          const newRes = response.substring(subIndex);
+          if (newRes.includes(' .')) {
+            const splitRes = newRes.split(' .')
+            const serialNumber = splitRes[0];
+            dataTransaction.seri_number = serialNumber
+          } else {
+            dataTransaction.seri_number = responseBaru[11];
+          }
         }
       }