Microsoft 365 - Outlook - Opening Shared (Class) Calendars

Outlook for Desktop

1. Open the Outlook for Desktop app
2. Click the Calendar menu icon in the left navigation bar. 
3. Click on the Home tab in the ribbon at the top of Outlook.
4. Click on the Add Calendar (green plus) icon in the Home ribbon.
5. Select Add Calendar then select From Address Book
6. In the search bar, type the name of the calendar in question and hit Enter
7. Double-click on the calendar result and ensure it is showing at the bottom of the window.
8. If so, click OK.
9. You will find the calendar added within your Calendar menu under Shared Calendars. Ensure the calendar you added is checked to see the calendar events.

Outlook for Mobile

1. Open the Outlook mobile app and select the Calendar icon on bottom of app.
2. Select Calendar account icon in top-left of app
3. In the pop out window, select the Add Calendar icon
4. Select Add Shared Calendars
5. In the search bar, type the name of the calendar and then tap the + (plus) icon next to the calendar you searched for.
6. You will find the calendar on your Calendar menu under Shared Calendars. Ensure the calendar is checked to see the calendar events.

iOS Mail App

1. Log into Outlook Web Access via your web browser at https://outlook.office.com/
2. In the left navigation bar, click on the Calendar icon to switch to your calendars.
3. Check to see if the calendar that you would like to add to your iPhone/iPad is listed in the left pane. If it is there, check whether the circle to its left is filled with a checkmark. If it isn’t check, select the circle. If it is already checked, select it to remove the checkmark and then select it again to add it back.
4. If the shared calendar was not already listed in the left pane, click Add calendar > Add from directory. Search for the calendar and click Add.
5. Check your iPhone/iPad’s Calendar app. It may take a few minutes to sync. While waiting, click Calendars in the app and look for the shared calendar. Click it if there is not a checkmark to its left. If you are not seeing the data after 30 minutes, try the process again starting with step one.