You can now use WebvantaScript in defining the subject line for admin and user notification emails. These emails are sent when a form is submitted, and the system has long allowed use of WebvantaScript in the body of the emails. Now, that capability has been extended to the subject line.
For example, the following subject line:
New request for <w:kb:item:requested_item_name />
Would create a subject line such as "New request for installation services", based on the value of the field named requested_item_name in the submitted form.