Log in to Google Cloud Directory Sync (GCDS).
Click on Security->Authentication to configure Set up single sign-on (SSO) with a third-party IdP.
Enter the following values on Google Admin page:
Select Set up SSO with third-party identity provider.
Enter the sign-in and sign-out URLs from Britive noted above.
Note: When you log out from GCP, the Britive session is also terminated. If you do not want this to happen, please set the sign-out URL to: https://console.cloud.google.com.Upload the SAML certificate.
Select Use a domain specific issuer.
Save all the details.
For more details, see Service provider SSO setup.