Can I use GCM to send push notifications between different applications?

Question

therefore, I am new to GCM, and our project includes 3 different applications for 3 different users: Student, Parent and Faculty. Thus, the precedent is that the faculty cancels the class for today and sends push notifications to all students in this class. Now I read and watched a video about GCM, and, as far as I know, there must be a unique key for the application to send and receive notifications. In this case, the sender of the notification is the Faculty application, and the recipient is the Student application. Is it even possible? Or do we need to combine these 3 applications?

Answer 1

you don’t worry about sending a notification if there is a server (as a rule, each application has for centralized data management). the server will do this. if you plan to create the same application (the same package identifier, but a different view for another user), then the server will track its unique key to track the type of user.

if you are creating an application with a different version (different package identifier), you need to register the GC GC console to re-token N times (N = not from different application package identifiers).