diff --git a/src/Api/Payment.php b/src/Api/Payment.php
index d9b791f..77d3303 100644
--- a/src/Api/Payment.php
+++ b/src/Api/Payment.php
@@ -218,6 +218,9 @@ public function initiatePayment(
                 case 'timeStamp':
                     $request->getTransaction()->setTimeStamp($value);
                     break;
+                case 'scope':
+                    $request->getTransaction()->setScope($value);
+                    break;
             }
         }
         // Pass request object along with all data required by InitiatePayment
diff --git a/src/Model/Payment/ResponseGetPaymentDetails.php b/src/Model/Payment/ResponseGetPaymentDetails.php
index 937d463..222233f 100644
--- a/src/Model/Payment/ResponseGetPaymentDetails.php
+++ b/src/Model/Payment/ResponseGetPaymentDetails.php
@@ -42,6 +42,12 @@ class ResponseGetPaymentDetails
      */
     protected $userDetails;
 
+    /**
+     * @var string
+     * @Serializer\Type("string")
+     */
+    protected $sub;
+
     /**
      * Gets orderId value.
      *
@@ -87,4 +93,12 @@ public function getUserDetails()
     {
          return $this->userDetails;
     }
+
+    /**
+     * @return string
+     */
+    public function getSub()
+    {
+         return $this->sub;
+    }
 }
diff --git a/src/Model/Payment/Transaction.php b/src/Model/Payment/Transaction.php
index 3720dff..1669b27 100644
--- a/src/Model/Payment/Transaction.php
+++ b/src/Model/Payment/Transaction.php
@@ -42,6 +42,12 @@ class Transaction
      */
     protected $timeStamp;
 
+    /**
+     * @var string
+     * @Serializer\Type("string")
+     */
+    protected $scope;
+
     /**
      * Gets amount value.
      *
@@ -156,4 +162,27 @@ public function setTransactionText($transactionText)
         $this->transactionText = $transactionText;
         return $this;
     }
+
+    /**
+     * Gets scope value.
+     *
+     * @return string
+     */
+    public function getScope()
+    {
+        return $this->scope;
+    }
+
+    /**
+     * Sets scope variable.
+     *
+     * @param string $scope
+     *
+     * @return $this
+     */
+    public function setScope($scope)
+    {
+        $this->scope = $scope;
+        return $this;
+    }
 }