I have figured out how to use this now and see that there are only two AD attributes that can be used as the user login name: sAMAccountName and userPrincipalName.
Has a request been submitted to make this attribute free form entry so I could pull something like an attribute EMPLOYEEID from the AD account? I have tried to change it in the xml configuration that is created and it is ignores and the sAMAccountName is used instead.
This would be very helpful as I have an HR department that stores everything with the EmployeeID and if I could get the EmployeeID as the login name I could set up a filter based on their login name to the field EmployeeID.
https://www.docuware.com/sites/default/files/forums-images/UserSync.png