Administrators can now exempt external users from having to use SSO to log in to your organizations. When SSO sign-in is enforced on your organization, administrators will now have the ability to quickly view the status of exemptions, exempt, or un-exempt users in just a few clicks. You no longer need to rely on Contentful support to perform these actions.

You can refer to this documentation on how to exempt users from SSO and the FAQ page to learn more about SSO enforcement.