Notify the user to open the app when close to refresh token expiry

[yatharthranjan]

The default token expiry for OAuth refresh tokens provided by the management portal is 90 days. If the app is closed (not running in the background), the token will not be refreshed and the user logged out, resulting in an unauthorised error for the user when the app is opened next.

Suggest we schedule a notification for few days before the refresh token expiry (perhaps 80 days for a 90 day refresh token validity). The notification should be cancelled whenever the token is refreshed and a new notification scheduled for the new refresh token expiry date.

This would prevent users from logging out and also prompt them to open the app in case it is not running for some reason.

This is not a complete strategy and should be combined with comprehensive missing data monitoring on the backend using dashboards and alerting.