User Lookup feature allows you to pull additional user information from any external service or API. The information received from the remote service will be displayed on the user profile page.
To enable User Lookup you need to enter the remote service URL. The URL should contain "#email#" string - it will be replaced with user's email address by helpdesk. Example URL: http://localhost/myscript.php?email=#email
A valid JSON response is required from the remote service. Learn more about User Lookup here.