Can I use single-sign-on (SSO) for any app provided in the appstore?
UCS-SSO is designed to offer a centralized sign-on for several services and apps
The apps need to be configured to use SSO. As Univention UCS offers LDAP integration for apps the app vendor has to configure it’s app to be ready for SSO.
You have to ask the app’s vendor if the app ready for SSO.