Cumulus uses a Unique User ID (UUID) for user identification as well as for checking a user’s record and category permissions. A UUID consists of a definition of the authenticator and a unique ID from the authenticator. The authenticator is required to provide a unique ID.
By default, the user will always be identified by the UUID provided by the Cumulus built-in authenticator and stored in the Users catalog. The Unique User ID option on the General tab of the user’s Properties window is activated,
If you employ a different authenticator (e.g. LDAP), it might provide own UUIDs. If you want to use these UUIDs, you must deactivate the Unique User ID option in the Cumulus user’s properties.
NOTE: Changing the Authentication Method! If you change the authenticator and use its UUIDs, the permissions set for a user are no longer valid. They must be set again for the ’new’ user (identified by the UUID of the other authenticator.)