Issue with OAuth Configuration for Connecting Google Docs in n8n?

It sounds like you might be using the generic OAuth2 configuration rather than the single service credential setup that’s available for Google Docs.

n8n still supports both approaches:

• Google OAuth2 Single Service: When you use the built-in Google Docs node (or any other Google service node that supports it), you can usually just click Sign in with Google in the OAuth section. This flow automatically handles the Authorization URL, Access Token URL, and query parameters behind the scenes.

• Google OAuth2 Generic: If you’re setting up credentials manually (for example, using the generic OAuth2 credentials), then you need to provide the Authorization URL, Access Token URL, and Auth URI Query Parameters yourself.

If you’re connecting Google Docs, consider using the Google OAuth2 single service flow. This approach is streamlined and prevents you from having to manually enter those details.

Make sure to review the Google OAuth2 single service documentation if you want to switch to that method. This documentation outlines the exact steps for creating and finishing your credential so you don’t need to worry about inputting those parameters manually.