I have a SAAS solution app that was developed using Flutter. And it uses Firebase as the backend. When a user creates a subscription (in the subscription collection), it has following fields such as

Notification always received, it’s just that the handler stops working after a period of time / number of notifications.

I develop an app, there are two riles admin and users. When any campaign is published the details of all the campaign is fetched in to the admin side app. So is that any method todo this in the flutter app. I read documentation but i didn’t understand that. So how to implement this?

i have just started to include firebase cloud messaging into my flutter app. however, i am facing the following error: