The signed app works fine but as soon as I upload the app to play store, the firebase phone authentication throws Unexpected response code 400 for https://www.googleapis.com/identitytoolkit/v3/relyingparty/sendVerificationCode? error.
The signed app works fine but as soon as I upload the app to play store, the firebase phone authentication throws Unexpected response code 400 for https://www.googleapis.com/identitytoolkit/v3/relyingparty/sendVerificationCode? error.