Create simple authentication users through UMC
With UCS 4.3 Univention simplified the user types. As mentioned in the release notes there are now only three types of users.
Start the UMC as administrator.
Navigate to the domain tool (blue item)
"LDAP-Directory" -> "users" -> "add" and then select as type “simple authentication user”.
Note: For ucs@school environment make sure to select the “users” container below the school OU, otherwise the user has full access for the whole LDAP tree.