Android app not working after published to Play Store

Question

How can I fix firebase authentication error? I generated a release APK of my app and it works fine on devices users can login as they should.

Then the problem occurs when I have published the very same working APK on the play store and I install from there (playstore). I get the error that

the app is not authorised to use firebase Authentication. please verify that the package name and SHA1 are configured in the firebase console

Inject

Could you follow the steps here and check the SHA matches your release cert – Batangas

Answer 1

I fixed it after hours of a headache.

When you publish your apk to the play store, you get assigned with a singing certificate SHA1. That you have to add to your firebase console.

Inject

For my case, I added all SHA1 and when I generate a signed .apk and install on the phone, everything works fine but when I published a signed .aab bundle, an error comes "This app is not authorized to use Firebase Authentication. Please verify that the correct package name and SHA-1 are configured in the Firebase Console" Kindly advise me, this has taken me over 4 days but no success. – Disproportionate

Answer 2

I just fixed the same issue. In my case, i had signed my APK and had added the SHA-1 to my Firebase Authentication. But while publishing to Play Store i have opted in for Google Play App Signing. And when we create a release in Play Console, Google replaces the Release Signing Key with Google's maintained key.

The Google Key's SHA-1 can be found in Release Management - App Signing - App Signing Certificate in your Google Play Console. You will need to add that key's SHA-1 to your Firebase Authentication. And it will work.

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