'OTP in Firebase phone auth is not receiving when uploaded on playstore, but works fine when apk is installed on phone directly

Added SHA-256 of release and debug mode, updated the google-services.json file.



Solution 1:[1]

you need to get the SHA code from your play store page are well.. go to developer console & get it from Release Management > App Signing

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Saksham Khurana