AD / LDAP users and groups integration with XWiki

@lanedsmu thank you very much!
We have configured manually in xwiki.cfg, so no extension involved.
When you say in general that's right, well we don’t have that many spaces, and my question is more about how XWiki will replicate what comes from the UCS AD after mappings are done?

If I create a test group XYZ in AD with a few test users, and then configure a mapping for this test group XWZ in xwiki.cfg:

→ will the XYZ test group have to be created manually in XWiki, and then its users will appear ?
→ or once the configuration done, (if done the right way), and after the servers are restarted, would the XYZ test group created in the AD appear by itself in XWiki, along with its belonging users?