Users redirected to /not_allowed.do with a message "Security constraints prevent access to requested page"Issue Security checks are in place to avoid redirecting to external sites, if SSO is not correctly configured, the users are not redirected to the Identity provider but to the '/not_allowed.do' page.CauseWhen logging in by Single Sign-on (SSO), the system checks the redirected URL is part of the defined Identity provider or IdP records on the instance. If a matching URL is not found, the instance redirects to /not_allowed.do.ResolutionPlease ensure the defined IdP contains the redirection URL as part of the IdP records. To disable the validation, which is not recommended, administrators can create or define the following system property: Name Value glide.authenticate.auth.validate.url false