I have a Flutter app that sends notifications to an FCM topic. The app is notification-based and does not require users to open it after the initial setup. I’m concerned about how FCM works with topic registrations. Specifically, I want to know if topic registrations expire like device tokens do. No targeted notifications using tokens are needed, only topic-based notifications.
Clarification Needed:
- Do FCM topic subscriptions expire like device tokens?
- Is there anything specific I need to handle to ensure my app remains subscribed to the topics over time?