How do I get to know about overdue or upcoming service appointments?

How do I get to know about overdue or upcoming service appointments?

Upcoming Appointments:
  1.       Field agents receive push notifications via the Zoho FSM mobile app for upcoming scheduled appointments.
Overdue Appointments:
  1.       Appointments that go past their scheduled end time without being completed are marked as overdue.
  2.       These are flagged in the Dispatch Console and in the FSM mobile app,