In the CMS, you can recognize users imported from AD by the Is domain user check-box on a user’s General tab, as you can see in the screenshot below.

 

When editing roles, you can see the Is domain role check-box, which has the same meaning for roles.

 

These check-boxes reflect the values of the following Boolean fields in the database tables:

 

 

 

Page url: http://devnet.kentico.com/docs/devguide/index.html?how_to_recognize_imported_users.htm