InCopy notification

How do I notify editors of updated assignments? My editors are doing many other things and only open IC for our projects. How do I notify them that their assignment is updated? Do I need to email them, or is there an automated system? This is all I could find on Adobe's site:

Notify users when an InCopy content file is outdated, being used by someone, or available for editing. Notification methods include alert messages, frame icons, status icons in the Links panel, and status icons in the Assignments panel.

It sounds like users need to somehow KNOW to check the assignment file on the server...

Thanks!

Melissa