Since the domain is already being used by G Suite, the best course of action is to minimize disruption by discovering any existing uses of Google-managed services. Collaborate with the existing Super Administrator to align the setup with the company's requirements. Step-by-Step: Identify Existing Usage: Have the customer's management identify all current uses of the domain within Google-managed services. Collaboration: Work closely with the existing Super Administrator of the domain. Provision Required Accounts: Ask the Super Administrator to provision necessary accounts and permissions for the data science manager or other relevant personnel. Integrate SAML IdP: Ensure that the existing domain integrates with the company’s SAML 2.0 IdP for user authentication. Set Up Cloud Identity: Configure Cloud Identity under the guidance of the Super Administrator without disrupting current services.
Reference:: Google Cloud Identity Administration Google Support for Domain Issues