I launched my automation workflow, which uses YouTube, Drive, and Sheet nodes. At some point, I get an error. The provided authorization grant (e.g., authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the author…

[image] [image] Node version 4.7 (Latest) n8n version 2.0.3 (Self Hosted)

Hi @seddinnnss , welcome! Make sure the app’s Publishing status in GCP is in production mode: [image] Google OAuth2 API credentials randomly fail every ~5 days - need help with persistent authentication Questions Hi @Maxim_Hrusha This is the default setti…

I ran into this as well. For self-hosted N8N normally publish the app should solve it but strange that in my case the token still expires even after the app is published. As workaround, I setup Google service account credentials which never expire. I also put together a tutorial on this in case any…

I suspect that Google OAuth expires after a while and won't reconnect

Questions

mohamed3nan January 22, 2026, 11:37am 3

Hi @seddinnnss, welcome!

Make sure the app’s Publishing status in GCP is in production mode:

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I suspect that Google OAuth expires after a while and won't reconnect

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