Follow these steps to connect a Google Drive account as a storage.
Configure Google Cloud
Sign in to the Google Cloud Console with the Google account that will authorize access to Drive.
Create a Google Cloud project, or select an existing project.
Open APIs & Services > Library, find Google Drive API, and click Enable.
Open Google Auth Platform. If prompted, click Get started and configure the app:
Branding: enter an app name and the required support and contact email addresses.
Audience: choose Internal only if the app is for users in your Google Workspace organization. Otherwise choose External and add the Google account you will connect as a test user while the app is in testing.
Data Access: configure the Drive access scopes required by your use of GroupDocs Cloud. Use only the access the integration needs. Google may require verification for some scopes before an external app can be used broadly.
See Google’s OAuth consent configuration guide for current details. For an external app left in Testing, Google can expire refresh tokens after seven days. For a persistent connection, publish the app and complete any verification Google requires for its scopes. See Google’s OAuth 2.0 documentation for token behavior.
In Google Auth Platform > Clients, click Create client.
Select Web application, enter a name, and add this exact URI under Authorized redirect URIs: