Outlook on the Web - Open a Shared or Resource Calendar

Steps to Open a Shared Calendar

1. Log in to Outlook on the Web: and navigate to the Calendar view by clicking the Calendar icon. 
2. In the left-hand pane, find and click on Add calendar.  
3. Select Add from directory and select your account from the drop-down menu. 
4. In the dialog box, type the name of the person or room whose calendar you want to open and click ADD 

The shared calendar will now be visible in your calendar list, allowing you to view its contents alongside your own.