Subscribing adds the organizer's calendar to Outlook for your work or school account (Microsoft 365). New and changed events then appear automatically. These steps are for a desktop browser.
Do you use a personal outlook.com, hotmail.com or live.com account? Follow the Outlook.com article instead.
Before you start
Sign in to Outlook on the web with your work or school account in the same browser. The calendar is added to the account that is signed in.
Steps
Open the calendar page you received from the organizer and click Add to Calendar. If the page asks for your name and email first, fill them in and continue.
Choose Office 365 (online). Outlook opens in a new tab on Add calendar > Subscribe from web, with the link and the calendar name already filled in.
Wait until the whole form has loaded, including the Add to field. Optionally pick a colour and an icon. Then click Import. Without this step nothing is added.
Close the window. The calendar is now in the left sidebar under Other calendars.
Good to know
Updates take time. Outlook fetches subscribed calendars on its own schedule. New or changed events can take several hours to appear, sometimes up to 24 hours.
Read-only. You cannot edit events in a subscribed calendar.
Outlook desktop and mobile. The calendar belongs to your account, so it also shows in the Outlook apps once they have synced.
Unsubscribe
Right-click the calendar under Other calendars and choose Remove.
Troubleshooting
Nothing opens when I choose Office 365. Your browser may have blocked the new tab. Allow pop-ups for the calendar page and try again.
Nothing was added. You probably closed the Outlook tab before clicking Import. Go back to the calendar page and choose Office 365 (online) again.
Outlook asks whether to save or discard changes. You closed the window after changing something but before importing. Choose Cancel, then click Import.
Subscribe from web is missing or gives an error. Your organization may not allow internet calendars. Ask your IT administrator, or use a personal calendar instead.


