Google Cloud (Drive, Sheets, Gmail)

Short video explanation: https://www.youtube.com/shorts/m8oazWzHtUA

Uses a single "OAuth2" credential for all three services.

1. Create Project: Go to the Google Cloud Console, create a New Project, and name it (e.g., "n8n-automation").
2. Enable APIs: Go to APIs & Services > Library. Search for and enable these three APIs:

• • Google Drive API
  • Google Sheets API
  • Gmail API

1. Configure Consent Screen: Go to APIs & Services > OAuth consent screen.

• • Select External (unless you are a Workspace admin, then Internal is easier).
  • Fill in the App Name (e.g., "n8n") and Support Email.
  • Important: Under "Test Users", add your own Google email address (required for External apps in testing mode).

1. Create Credentials:

• • Go to APIs & Services > Credentials.
  • Click Create Credentials > OAuth client ID.
  • Application type: Web application.
  • Authorized redirect URIs: Paste the "OAuth Callback URL" provided in your n8n Google credential window (e.g., https://[your-n8n-instance]/rest/oauth2-credential/callback).
  • Click Create.

1. Connect in n8n: Copy the Client ID and Client Secret into your n8n Google OAuth2 credential fields and click "Sign in with Google".