Search for who you would like to add either by full name or username.Alternatively, right click on the calendar you want to share and select Sharing Permissions.Select the calendar you want to share and click on the Calendar Permissions button on the top tool bar.Click the Calendar icon in the lower left.Non-person accounts can only be shared by the owner of the account, if you are unsure who the owner of the calendar is please check with other users who use the calendar or your office manager.Person calendars can only be shared by the person whose calendar it is, you cannot add a person calendar until you have been given permission by the owner.Person calendars are calendars tied to individual people, non-person calendars are calendars not tied to individual people such as room calendars or role based accounts. There are two types of calendars, person and non-person.If you are using a different version of Outlook the steps may be slightly different, if you need any help please contact your local IT department.16.49, which is included in our Office 365 license. The steps for the desktop application below are for Outlook ver.