How to send notifications to one of two apps in the same project at firebase

Question

We have multiple apps at the same project of firebase like Master, Develop, testing.

And for sure every one of them has different users and we want to send to one ap

Answer 1

You can use the restricted_package_name parameter (if your master, develop and testing have different package names) to filter the receivers by package name.

To highlight @Doug Stevenson's comment. It is not recommended to put these three environments in one project