diff --git a/Modules/Internal/Transformers/AppointmentResource.php b/Modules/Internal/Transformers/AppointmentResource.php
index c601067f..f5948e45 100644
--- a/Modules/Internal/Transformers/AppointmentResource.php
+++ b/Modules/Internal/Transformers/AppointmentResource.php
@@ -37,11 +37,11 @@ class AppointmentResource extends JsonResource
         $payment_detail = null;
         if ($this->appointmentDetail->sPaymentDetails != null) {
             $payment_detail = [
-                'payment_type' => $this->appointmentDetail->sPaymentDetails['payment_type'],
-                'transaction_time' => $this->appointmentDetail->sPaymentDetails['transaction_time'],
-                'gross_amount' => $this->appointmentDetail->sPaymentDetails['gross_amount'],
-                'currency' => $this->appointmentDetail->sPaymentDetails['currency'],
-                'status_message' => $this->appointmentDetail->sPaymentDetails['status_message'],
+                'payment_type' => $this->appointmentDetail->sPaymentDetails['payment_type'] ?? '',
+                'transaction_time' => $this->appointmentDetail->sPaymentDetails['transaction_time'] ?? '',
+                'gross_amount' => $this->appointmentDetail->sPaymentDetails['gross_amount'] ?? '',
+                'currency' => $this->appointmentDetail->sPaymentDetails['currency'] ?? '',
+                'status_message' => $this->appointmentDetail->sPaymentDetails['status_message'] ?? '',
             ];
         }