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Android - Firebase Debug SHA1 certificate

I'm trying to implement Firebase Authusing google login. Adding an Android application to his project, he asks me Debug signing certificate SHA-1. Now this project is shared with my teammates, and everyone will launch the application through the appropriate software for Android Studio. My queries are:

  • The debug key will be different for all of us. Should I add the SHA1 debug certificate keys of all my teammates in the Firebase project settings? Currently, I only have mine, and the other person who ran the application code through his Android studio could not use Google Login on his phone. The signing process would simply end abruptly.

  • Once the application is ready for release, the application will be distributed through the play store. Is it possible to encounter problems downloading the application? I'm curious because all of their devices will again have different keys.

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You can add as many SHA-1 debugging keys as you want in the project settings for each of your development machines. Before publishing your application, the release SHA-1 key must be loaded in the project settings. Each application downloaded by users from the Play Store is signed with the same release key, so this should not be a problem!

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