Please send a notification when a guest is added or dropped from an event

The system does not send an admin any notification when a guest is added or dropped from an event.  It will if a member adds or cancels but please add guests to the notification.  Sometimes the notification is the only thing telling you an event that you thought was full now has a spot.  And it keeps you from advertising a spot in an event that isn't there because you did not receive a notification that a guest took the spot.  The notifications go a LONG way in helping you manage events.  Please include a notification on guests.