Google login not working on amazon app store app. I have uploaded the same APK in amazon, google login is working fine when I download app from play store and app store but it is not working when I download from amazon app store.
Is there any SHA-1 key in amazon app store I have tried to find but I did not get.
Yes, Amazon Appstore re-sign your app with a signature which is unique to your Amazon developer account. You can get the hash keys by going to your app submission, select the APK Files tab, and there's a link Appstore Certificate Hashes in the upper right corner.