Hello Google OAuth Developer,
We're writing to remind you that the OAuth out-of-band (OOB) flow will be deprecated on October 3, 2022, to protect your users from phishing and app impersonation attacks.
As we notified you in May and August 2022, any affected authorization endpoint requests will be blocked with an invalid_request
error after October 3, 2022.
If you have already migrated your app(s) to an alternative OAuth method, no further action is required. Please note that if your app(s) is natively installed you may have to request your users to update the app to the newer version to stop using the OOB method.
Below are key dates for compliance:
Please reference our previous email with the subject line containing: “Migrate your OAuth out-of-band flow to an alternative method before October 3, 2022,” for more details.
invalid_request
error when loading Google's OAuth 2.0 authorization endpoint after October 3, 2022.The following OAuth client(s) will be blocked.
OAuth client list:
Thanks for choosing Google OAuth.
— The Google OAuth Developer Team
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You have received this mandatory service announcement to update you about important changes to Google services you use.