Open a specific app screen from outside the app

Hello,
Is there a way a open a specific app screen from outside of the app (e.g. a link in an e-mail that opens a specific app screen)?

It should be possible, because when I test the push notifications, one of the options is to open a specific screen and that works. But I cannot figure out how to put together the correct URL to use it for example in e-mails.

Thanks,
Matouš