Add a shared calendar

You can add up to ten shared calendars

from a single mailbox

on your device. You can view the added calendars and the details of calendar events. If you are assigned the Editor role, you can respond to invitations on the calendar for a supported mail server; tap on a grayed-out calendar entry to accept/tentative/decline (not supported between Exchange versions). You will receive email invites for shared calendars, but you cannot accept, tentative, or decline them in email. You can add, edit, and delete calendar events. If you are assigned the Reviewer role, you can view shared calendars but not change them.