Firebase Authentication Sign Gmail Problem

[Boban (Boban Stojmenovic)]

Phone Authentication OTP Problem after uploading it on Google Play

This one is the solution, i have the same problem weeks ago.. its the signing problem. When you create the app in kodular, you already have a fingerprint and also in google console.. it need to be match after kodular add this feature, its just need to fix some stuf.., First Go to your console, see the App Signing certificate>>> copy it Second Go to your firebase account>>>project settings>>>see your projects info and add fingerprint just paste the signing cert from google play console. …