diff --git a/application/controllers/Booking_cancellation.php b/application/controllers/Booking_cancellation.php
index 62e51dbc..2b993fc0 100755
--- a/application/controllers/Booking_cancellation.php
+++ b/application/controllers/Booking_cancellation.php
@@ -95,7 +95,7 @@ class Booking_cancellation extends EA_Controller {
 
             $this->synchronization->sync_appointment_deleted($appointment, $provider);
 
-            $this->notifications->notify_appointment_deleted($appointment, $service, $provider, $customer, $settings);
+            $this->notifications->notify_appointment_deleted($appointment, $service, $provider, $customer, $settings, $cancellation_reason);
 
             $this->webhooks_client->trigger(WEBHOOK_APPOINTMENT_DELETE, $appointment);
 
diff --git a/application/controllers/Calendar.php b/application/controllers/Calendar.php
index 694631c2..4e31d31d 100644
--- a/application/controllers/Calendar.php
+++ b/application/controllers/Calendar.php
@@ -233,7 +233,7 @@ class Calendar extends EA_Controller {
                 }
 
                 // If the appointment does not contain the customer record id, then it means that is going to be
-                // inserted. 
+                // inserted.
                 if ( ! isset($appointment['id_users_customer']))
                 {
                     $appointment['id_users_customer'] = $customer['id'] ?? $customer_data['id'];
@@ -312,6 +312,7 @@ class Calendar extends EA_Controller {
             }
 
             $appointment_id = request('appointment_id');
+            $cancellation_reason = request('cancellation_reason');
 
             if (empty($appointment_id))
             {
@@ -335,7 +336,7 @@ class Calendar extends EA_Controller {
             // Delete appointment record from the database.
             $this->appointments_model->delete($appointment_id);
 
-            $this->notifications->notify_appointment_deleted($appointment, $service, $provider, $customer, $settings);
+            $this->notifications->notify_appointment_deleted($appointment, $service, $provider, $customer, $settings, $cancellation_reason);
 
             $this->synchronization->sync_appointment_deleted($appointment, $provider);
 
diff --git a/application/libraries/Notifications.php b/application/libraries/Notifications.php
index eb89be6c..9ccf4eec 100644
--- a/application/libraries/Notifications.php
+++ b/application/libraries/Notifications.php
@@ -201,17 +201,10 @@ class Notifications {
      * @param array $customer Customer data.
      * @param array $settings Required settings.
      */
-    public function notify_appointment_deleted(array $appointment, array $service, array $provider, array $customer, array $settings): void
+    public function notify_appointment_deleted(array $appointment, array $service, array $provider, array $customer, array $settings, string $cancellation_reason = ''): void
     {
         try
         {
-            $delete_reason = (string)request('delete_reason');
-
-            if (empty($delete_reason))
-            {
-                $delete_reason = (string)request('cancellation_reason');
-            }
-
             // Notify provider.
             $send_provider = filter_var(
                 $this->CI->providers_model->get_setting($provider['id'], 'notifications'),
@@ -227,7 +220,7 @@ class Notifications {
                     $customer,
                     $settings,
                     $provider['email'],
-                    $delete_reason,
+                    $cancellation_reason,
                     $provider['timezone']
                 );
             }
@@ -247,7 +240,7 @@ class Notifications {
                     $customer,
                     $settings,
                     $customer['email'],
-                    $delete_reason,
+                    $cancellation_reason,
                     $customer['timezone']
                 );
             }
@@ -269,7 +262,7 @@ class Notifications {
                     $customer,
                     $settings,
                     $admin['email'],
-                    $delete_reason,
+                    $cancellation_reason,
                     $admin['timezone']
                 );
             }
@@ -296,7 +289,7 @@ class Notifications {
                     $customer,
                     $settings,
                     $secretary['email'],
-                    $delete_reason,
+                    $cancellation_reason,
                     $secretary['timezone']
                 );
             }
diff --git a/assets/js/http/calendar_http_client.js b/assets/js/http/calendar_http_client.js
index aacec8da..1375ea9f 100755
--- a/assets/js/http/calendar_http_client.js
+++ b/assets/js/http/calendar_http_client.js
@@ -59,17 +59,17 @@ App.Http.Calendar = (function () {
      * Remove an appointment.
      *
      * @param {Number} appointmentId
-     * @param {String} deleteReason
+     * @param {String} cancellationReason
      *
      * @return {*|jQuery.jqXHR}
      */
-    function deleteAppointment(appointmentId, deleteReason) {
+    function deleteAppointment(appointmentId, cancellationReason) {
         const url = App.Utils.Url.siteUrl('calendar/delete_appointment');
 
         const data = {
             csrf_token: vars('csrf_token'),
             appointment_id: appointmentId,
-            delete_reason: deleteReason
+            cancellation_reason: cancellationReason
         };
 
         return $.post(url, data);
diff --git a/assets/js/utils/calendar_default_view.js b/assets/js/utils/calendar_default_view.js
index ee39dbd3..cd28ca89 100755
--- a/assets/js/utils/calendar_default_view.js
+++ b/assets/js/utils/calendar_default_view.js
@@ -243,9 +243,9 @@ App.Utils.CalendarDefaultView = (function () {
                         click: (event, messageModal) => {
                             const appointmentId = lastFocusedEventData.extendedProps.data.id;
 
-                            const deleteReason = $('#delete-reason').val();
+                            const cancellationReason = $('#cancellation-reason').val();
 
-                            App.Http.Calendar.deleteAppointment(appointmentId, deleteReason).done(() => {
+                            App.Http.Calendar.deleteAppointment(appointmentId, cancellationReason).done(() => {
                                 messageModal.dispose();
 
                                 // Refresh calendar event items.
@@ -263,9 +263,9 @@ App.Utils.CalendarDefaultView = (function () {
 
                 $('<textarea/>', {
                     'class': 'form-control w-100',
-                    'id': 'delete-reason',
+                    'id': 'cancellation-reason',
                     'rows': '3'
-                }).appendTo('#message-box');
+                }).appendTo('#message-modal .modal-body');
             } else {
                 // Do not display confirmation prompt.