Hi all!
I have a question regarding the addFcmToken cloud functions that is generated when enabling the push notifications in FF.
I can see that every new user gets the FCM token, but how can I add it also to existing users? When is the addFcmToken cloud function triggered? Can I trigger it (for example) when a user access the app and doesn't have a FCM token yet?
I have +15K existing users in my app and it would be amazing to enable push notifications also for them.
Many thanks for your help!