Assuming that you are importing users from the AD, here is an example about how it is done:

(&(objectCategory=person)(objectClass=User) (givenname=*)(sn=*)(mail=*)(sAMAccountname=*))
"AddDomainPrefix" from="sAMAccountname" to="UserName"/>
"givenname" to="FirstName"/>

Note that you will need to enter username and password for the administrator account if sAMAccountname is to be extracted properly

Sometimes IE implementation of the text area tag in the HTML adds trailing line feed characters. Please make sure you delete these otherwise the .xml will not be accepted by the parser. We are working on improving this system and will attempt to remove manual .XML scripting from the Polar Service Desk.