Change of Response Notification
The Outlook Calendar is a great tool for creating meetings. We've used it extensively for meetings and social gatherings. Recently we held an event that had a maximum number of entrants allowed where many colleagues expressed interest in attending, and "Accepted" the invitation.
We sent out a reminder after the initial email the following week and had a few people change their response from "Accept" to "Decline". The problem now is that when we look at the "tracking" information regarding responses, the people who have changed their mind still show as "Accepted".
It would be a nice feature to receive a notification email when people change their responses, and for the change to also be replicated in the "tracking" page.