SSO user Sign-On issues on specific model URL

We use SSO(Single Sign On) for end-user Sign-On to Anaplan.

When the SSO user wants to access Anaplan with specific model URL, Redirecting to frontdoor.

But SSO users can’t log in to Anaplan via frontdoor page.

(They don't have any Anaplan registration since they are SSO authentication only.)

In order to resolve above, Please tell us any resolution.

And also we suppose sample enhancements as below.

Administration user could designate friendly URL as redirecting URL (Instead of frontdoor page) .

If there are redirecting to friendly URL for SSO authentication,

SSO user can log in to specific Anaplan model via SSO friendly URL.