there is no separate portal entry for SSO via SAML. Instead you visit the regular management URL:
If the tests are successful, the browser redirects to the SSO login page:
https://ucs-sso.your.domain/simplesamlphp/module.php/core/loginuserpass.php?AuthState=… After a successful login there, you’re redirected to the management interface.
If, however, those tests fail, you’re automatically redirected to the non-SSO login page: