diff --git a/app/build.gradle b/app/build.gradle
index 0ea2ab2..5a76c6e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,8 +14,8 @@ android {
         applicationId "com.utsmm.kbz"
         minSdk 24
         targetSdk 33
-        versionCode 3
-        versionName "1.02"
+        versionCode 4
+        versionName "1.03"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
diff --git a/app/src/main/java/com/utsmm/kbz/ui/kpay/KPayViewModel.java b/app/src/main/java/com/utsmm/kbz/ui/kpay/KPayViewModel.java
index 14e1aff..a83ff33 100644
--- a/app/src/main/java/com/utsmm/kbz/ui/kpay/KPayViewModel.java
+++ b/app/src/main/java/com/utsmm/kbz/ui/kpay/KPayViewModel.java
@@ -232,7 +232,7 @@ public class KPayViewModel extends ViewModel {
         bizContent.put("trade_type", "PAY_BY_QRCODE");
         bizContent.put("total_amount", amount);
         bizContent.put("title", "testing");
-//        bizContent.put("operator_id", serialNum);
+        bizContent.put("operator_id", serialNum);
         bizContent.put("timeout_express", timeoutExpress);
         bizContent.put("trans_currency", "MMK");
         bizContent.put("callback_info", "callback");
@@ -257,7 +257,8 @@ public class KPayViewModel extends ViewModel {
                 amount,
                 "MMK",
                 timeoutExpress,
-                "callback"
+                "callback",
+                serialNum
         );
 
         KPayQRRequest.QrRequest.RequestBody body = new KPayQRRequest.QrRequest.RequestBody(
diff --git a/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java b/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
index dbd8e0c..988f46d 100644
--- a/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
+++ b/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
@@ -64,6 +64,7 @@ public class EReceiptUtil {
         request.setDE7(currentTimeStamp);
         request.setDE37(payDetail.getReferNo());
         request.setDE49("MMK");
+        request.setDE38(payDetail.getQrTransId());
         request.setSerial(serialNum);
         request.setAppId(packageName);
         request.setDE41(qrTerminalId);
diff --git a/baselib/src/main/java/com/utsmyanmar/baselib/network/model/KPayQRRequest.java b/baselib/src/main/java/com/utsmyanmar/baselib/network/model/KPayQRRequest.java
index 45d7635..a86a747 100644
--- a/baselib/src/main/java/com/utsmyanmar/baselib/network/model/KPayQRRequest.java
+++ b/baselib/src/main/java/com/utsmyanmar/baselib/network/model/KPayQRRequest.java
@@ -178,7 +178,7 @@ public class KPayQRRequest {
 
                 public BizContent(String appId, String merchCode, String merchOrderId, String tradeType,
                                   String title, String totalAmount, String transCurrency,
-                                  String timeoutExpress, String callbackInfo) {
+                                  String timeoutExpress, String callbackInfo, String operatorId) {
                     this.appId = appId;
                     this.merchCode = merchCode;
                     this.merchOrderId = merchOrderId;
@@ -188,6 +188,7 @@ public class KPayQRRequest {
                     this.transCurrency = transCurrency;
                     this.timeoutExpress = timeoutExpress;
                     this.callbackInfo = callbackInfo;
+                    this.operatorId = operatorId;
                 }
 
                 // Getters