Sign-in with google for android not working in release apk

Question

I have added the Google Sign in in my application and made it work by following all the steps in the official documentation. Everything worked fine, until I generated a sign

Answer 1

When you upload an apk to the play store then play store creates a new SHA1 key called "App signing certificate". You get that SHA1 and save in your console or firebase account (as you need).

New SHA1 will be found at Released Management->App Sigining on your play console.

or

when you build signed apk with your filename.jks it has different SHA than your debug apk, put these SHA which is generated by signed apk in Firebase nd update it and again download json from firebase and override existing json from your android studio.

Before publishing app you should read Google Play launch checklist

For complete release process you can go here