View who changed a calendar entry

To view who changed a calendar entry, do the following:

1. Go to the Calendar tab in the Outlook Desktop app, and open the calendar you'd like to see the changes made on.

2. Click Change View under the View tab on the top ribbon bar, and select list

3. Click View Settings, then select Columns, then on the pop up, click the drop down menu, and select "All mail fields"

4. Scroll down until you see the option for "Changed by". Double click it to add it to your columns, then select OK and close out all the pop up windows. You should now be able to see who last modified the calendar entry.