after Publishing your app at amazon app store and phone auth not working [Error: [auth/missing-client-identifier]

 Hello Dev,

 I'm Sujeet. today we have found one issue that is OTP is not reciving at mobile .

Project Details:

Developed in: React Native,

Platform: Android,

Supported API: ^20,

used for Phone Auth: Firebase Phone Auth


ISSUE Display at logcat: ReactNativeJS: 'signInWithPhoneNumber Second Screen', [Error: [auth/missing-client-identifier] This request is missing a valid app identifier, meaning that neither SafetyNet checks nor reCAPTCHA checks succeeded. Please try again, or check the logcat for more details.]


Solution : if you'r facing like this issue that mean mainly have two reason :

        1. Sha1 & Sha256  is not added in your firebase project ( So keep added in                         Firebase Project)

        2. Your app sha1 and sha256 key not matching, mean after publishing your app at amazon app store they have change or generate a new signin certificate you can see that below image : 



Show you have to add this new Sha1 & Sha256 key in your firebase .
after that all problem will solved.


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