diff --git a/packages/devextreme/js/__internal/scheduler/appointment_popup/m_form.ts b/packages/devextreme/js/__internal/scheduler/appointment_popup/m_form.ts
index 27ac465ae893..ac742565712d 100644
--- a/packages/devextreme/js/__internal/scheduler/appointment_popup/m_form.ts
+++ b/packages/devextreme/js/__internal/scheduler/appointment_popup/m_form.ts
@@ -522,6 +522,7 @@ export class AppointmentForm {
       editorOptions: {
         stylingMode: getStylingModeFunc(),
         width: '100%',
+        applyValueMode: 'useButtons',
         calendarOptions: {
           firstDayOfWeek,
         },