XojoCloud.RemoteNotifications.DeliveryOptions.ExpirationDate

From Xojo Documentation

Property (As DateTime )
aXojoCloud.RemoteNotifications.DeliveryOptions.ExpirationDate = newDateTimeValue
or
DateTimeValue = aXojoCloud.RemoteNotifications.DeliveryOptions.ExpirationDate

New in 2021r2

Supported for all project types and targets.

The date and time after which the notification is no longer valid and thus will not be delivered.