Unable to create Google Sheets OAuth2 API Connection in n8n Cloud? Error 400: redirect_uri_mismatch? Hi all, I’ve looked at a couple different variations of this problem here, and am unsure how to move forward. Effectively, every other time I’ve tried to set up a Google Sheets OAuth2 API credentia…

I am getting the same exact error. This is not only happening to my account, this is happening to any other google account I try to connect (workspace or personal). I have reached out to support and created ticket T-30470. This happened right after I updated my version to 2.1.2

Thank you for letting me know; I was pulling my hair out here!

[imagem] Marv_mart: I am getting the same exact error. This is not only happening to my account, this is happening to any other google account I try to connect (workspace or personal). I have reached out to support and created ticket T-30470. This happened right after I updated my version to 2.1…

No, I was contracted by someone to do some work for them involving n8n, and am attempting to connect n8n to their Google environment. They just signed up for n8n Cloud today.

Hey do you guys have an update or any fixes on this? Im having the exact same issue across all my google accounts personal and workspace

I am also having the same issue with this. I followed all these steps and there is no URI available to paste in Google Cloud. I am unable to sign in and I was in the motion of getting Google Sheets to function correctly. Please help us. I don’t even have a Redirect URL. What can I do?? [image]

I am also experiencing the same problem with Google Docs.

Hi @lrp I would recommend going the Service Account route as this avoids you having to refresh the login from time to time. This way you can also avoid trying to find the callback url to use for cloud. Seeing as this is for a client, you can then also impersonate a user on the clients account. Usef…

I’m experiencing the exact same issue and it’s driving me crazy!

That is a good work around @Wouter_Nigrini There are some tools (like Google Calendar) that does not support the service account option hence, this is a big problem. Guide with types of accounts that can use the service account is here. Compatible nodes - Google credentials | n8n Docs T…

400 redirect_

Questions

Wouter_Nigrini Dezembro 23, 2025, 4:10pm 14

There seems to be quite a few similar issues logged on the forums. I have given a reply here but users are saying its still a bug.

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400 redirect_

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