Osclass Support Forums
Osclass plugin support => Authenticate Osclass Social Login Plugin => Topic started by: abuzarkandwal on August 22, 2021, 10:02:08 PM
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Authorization Error
Error 400: redirect_uri_mismatch
You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy.
If you're the app developer, register the redirect URI in the Google Cloud Console.
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That message cannot be more clear.
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so how it will be clear
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Read message several times and if needed, contact google support.