Configures the system-level Google OAuth 2.0 credentials that allow the platform to read Gmail mailboxes on behalf of users (for the inbox integration feature).

Creating OAuth 2.0 Credentials

1. Open the Google Cloud Console and enable the Gmail API for your project.
2. Go to APIs & Services → Credentials → Create Credentials → OAuth client ID.
3. Select Web application as the application type.
4. Add an authorised redirect URI: https://<your-domain>/app/api/gmail/callback
5. Copy the Client ID and Client Secret.
6. Configure the OAuth consent screen and add the scope https://www.googleapis.com/auth/gmail.readonly (and any additional scopes needed).

Settings

Client ID

The OAuth 2.0 client ID from Google Cloud Console.

Client Secret

The OAuth 2.0 client secret. Stored encrypted at rest.

Redirect Domain

The domain used in the redirect URI registered with Google. This is required to match the domain used in the authorized redirect URI configured in the Google Cloud Console (e.g. https://<your-domain>/app/api/gmail/callback would require a redirect domain of <your-domain>. ).