Users can create and remove calendar events in their own calendars in Calendar service.
When users want someone else to edit their personal calendars, they delegate (or assign a proxy for) calendar management.
Calendar service supports calendar read-only, read-write, and editing delegates, allowing designated persons to read or write a user’s calendars.
To set up a user or group delegate, you use calendar client software. You use the Server app to choose delegates for resource and location calendars.
To learn how to configure calendar delegation, see the documentation for your calendar client. For information about the Calendar app, see its help.