What does the 'n8n gmail error 403 access_denied' typically mean?

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Grade: Education Subject: Support
What does the 'n8n gmail error 403 access_denied' typically mean?
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The 'n8n gmail error 403 access_denied' indicates that n8n is attempting to access your Gmail account, but the Gmail server is denying the request. This usually means the authentication process failed, often due to incorrect credentials, insufficient permissions, or a problem with the OAuth 2.0 flow.