May be it is a stupid question, May be this question will be downvoted... But I must ask this to you guys.
I have two SHA1 Keys. One is generated from Android Studio. I've read somewhere that this is only for debug mode and I've to create a key store for release mode. So I've got another SHA1 key after creating a signed apk. I've found that if I sign in with the debug key it works fine when the app is being tested. But after releasing it to the play store, user cannot login with my app. I am planning to migrate to Firebase. Now which SHA1 key should I put in firebase app, so that I can test my app as well as release in play store? I see that I can add multiple keys in the app, how will my keys work after release?