Activate a premium licence

Hello, I have a premium licence and I need to register it with package name. I do not know, which package name I have to use.
I have a simple application (for example application A). This is my module in Android Studio. Next, I have the second application ( B ), which uses your library. Application A (or module A) imports module B. Modules A and B have different package name.
So, my question is: which name of package I have to use for registration? A or B?
Thanks a lot.

i think Module B if you using startIntent

Sorry, but I do not think so. I tried it with your package name (com.radaee.reader) and licence works if application A has this package name. And I think that it is logic.

In case, that your answer is correct, then I think that I could do this:

1. Create B application, which uses your library.
2. Register package name of B.
3. Create a lot of other applications, which will use application B.

And this is nonsense, right?