there is help with some issues, probably you might be interested in Nextcloud using wrong search by searching the UUID in normal “login attributes” (name/email), that why you need to add the appropriate UUID to the “login attributes” - e.g. you might try ‘uid’ or one of [‘entryuuid’, ‘nsuniqueid’, ‘objectguid’, ‘guid’, ‘ipauniqueid’] that are mentioned in nextcloud/apps/user_ldap/lib/Access.php - for my Samba AD “objectGUID” worked.