Help! Google Drive authentication error 400

[Manabu_Yonezaki]

I’m developing a workflow using n8n in Japan. Today, when I tried to authenticate with Google Drive, I encountered the following error:

1. Enter your client ID.
2. Enter your client secret.
3. The “Sign in with Google” button appears.
4. When I press the button, a dialog box appears with an error 400.
   I don’t know what’s wrong or where it went wrong. Can someone give me some advice?
   The error message is translated into English as follows:
   “Access Blocked: n8n Integration request is invalid.”
   [email protected]
   You can’t log in because n8n Integration sent an invalid request. Please try again later or contact the developer about this issue. For more information about this error, please see the error details.
   Error 400: redirect_uri_mismatch."
   Thank you.

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Information on your n8n setup

• n8n version:
• Database (default: SQLite):
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via (Docker, npm, n8n cloud, desktop app):
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[Manabu_Yonezaki]

Sorry, I solved it myself!

In Google’s “Authorized Redirect URIs” did not match the OAuth redirect URI for my n8n instance. Sorry for the trouble.

Thank you.