The Google Workspace Connector's Outbound Provisioning functionality is built using Google’s Admin SDK, which requires an OAuth 2.0 access token for authentication. To obtain the access token, you will need to first obtain your Application Name, Client ID and Secret from Google Apps.
The Google Workspace Provisioner uses APIs provided by Google, which are subject the Terms of Service in the Google Admin SDK documentation.
API Access will need to be enabled on the Google domain in order to use the Google Workspace Provisioner for Outbound Provisioning. For information on how to enable API Access for a Google domain, see Control which third-party & internal apps access Google Workspace data in the Google documentation.