Unable to enable SCIM provisioning in Hub

Hello,

When attempting to enable SCIM in Hub Business it immediately disables itself. i.e. set the slider to on, then click synchronize in subsequent dialog, then the slider goes back to off position.

SSO with Entra is already configured and tests successfully, along with Encryption service, and domain verification.

Is there anything else that needs to be configured before SCIM provisioning can be enabled?

Thanks
Joe