Exchange email users can set the permissions on their calendars in the Outlook Web App after it has been shared. To set permissions on your calendar: Right click the calendar. Choose Permissions from the context menu. The people with permissions will be listed. Set the permissions in the drop down menu next to the person's name. Calendar Permissions. Permissions for Exchange and Office 365 calendars in Outlook can be accessed in a number of ways. Right-click on your calendar, click 'Share' and then 'Calendar Permissions.
. It is important to note that Outlook for Mac is limited in assigning privileges. The least amount of privileges that can be assigned are the privileges of a Reviewer. Nonediting Author, Author, Publishing Author, and all other selections above Reviewer may be selected and used without an issue. Contributor and Free/Busy Only selections will not properly function. This is a known issue that Microsoft is yet to resolve. If you require sharing privelidges that are not available on Outlook for Mac, please search the Knowedge Base for instructions on how to share calendars on the Office 365 web application or web app.