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I am using Firebase Phone Authentication in my app and everything worked fine before I published the app on Play Store. After the publication in Open Testing Mode, users can not authenticate with their phone numbers anymore. I have already included the SHA-1 certificate fingerprint from Play Store console (located in App Integrity) in my Firebase console but it still doesn't work. Is there anything that I should do which I haven't done?

Please note that I have enabled Google Play App Signing, and I uploaded my Android App Bundle (.aab) on Play Store.

Raad
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  • please add your sha kye into google play store than its will start working – Amit pandey Mar 16 '21 at 05:05
  • @Amitpandey Do you mean Firebase console? I have already done it as I mentioned in my question. is it even possible to manually add a SH-1 fingerprint in play console? – Raad Mar 16 '21 at 05:19
  • You can have a [look at this.](https://stackoverflow.com/a/53513327/2289835) – Rumit Patel Mar 16 '21 at 05:46
  • @RumitPatel Thank you for the reference. I have already done this but still no luck. – Raad Mar 16 '21 at 05:55
  • There us 2 type of SH-1 one is realse and the other is debug please add relase SH-1 into firebase and google play consol – Amit pandey Mar 16 '21 at 06:08
  • @Amitpandey Yes, I do understand this and I am only using release SH-1 fingerprints. I have already added these two fingerprints in firebase console. Would you elaborate more on what you mean by adding this to play console? – Raad Mar 16 '21 at 06:12
  • see this link you have to add your SH-1 into your google play consol as well to get the phone authentication https://stackoverflow.com/questions/46751766/this-app-is-not-authorized-to-use-firebase-authentication-please-verify-that-the/53513327#53513327 – Amit pandey Mar 16 '21 at 06:19
  • @Amitpandey I have already done this. but the problem is not solved. Please read my question one more time. – Raad Mar 16 '21 at 06:24

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After struggling a lot and implementing different solutions, I fixed the problem by enabling Android Device Verification API in google developers console. Only adding SHA-1 fingerprints was not enough in my case.

Raad
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