Question: If you have an administrator who has given several office associates access to add appointments to her calendar is there a way to know/find out who added the calendar entry?
Answer: If you open the calendar entry, look in the lower right of the window and you can see who last modified it. But to see who created it would require you to go to the list view and add a field to the view.
1. In Outlook 2010, go to View > Change View and select List
2. Click the Add Columns icon and change the dropdown list to All Mail Fields (from frequently used fields) and select From, and click OK. You can move it or drag it to any column heading location. This column should remain in this view on that computer.
3. You’ll just have to remember to change your view to see the calendar page view (from View > Change View)