Unable to open a shared calendar in Outlook Desktop

Last Updated: July 17, 2024

ISSUE

After you add a shared calendar in Outlook Desktop, you are not able to select the checkbox next to the name. For example, a delegate adds a manager’s calendar but is not able to click to select and open it from the left navigation in the Calendar module.

Shared Calendar cannot click calendar name

STATUS: WORKAROUND

From July 15, 2024 to July 17, 2024, this issue occurred in classic Outlook for Windows in Online Mode and was investigated as incident EX814289 (only Admins will be able to view this incident). That incident was fixed by a service change on July 17, 2024.

We are continuing to investigate this issue when using classic Outlook for Windows in Cached Mode. While we continue to investigate, please use Outlook on the web or new Outlook for Windows to access shared calendars, or this workaround if you want to continue to use classic Outlook for Windows:

In initial support cases we found that that the affected users had many wunderbarlinks in their Common Views Folder.

To work around the issue, follow these steps:

Capture a screenshot of all the Calendars listed in the Calendar pane, as they will need to be manually added back.
Close Outlook.
Select the Windows Start button, select Run, then type Outlook.exe /resetnavpane.
Start Outlook.
Manually add the shared calendar.
- If this is a REST shared calendar, from the Home ribbon in the Calendar module: select the Add button, and then select Open Shared Calendar.
- If the Calendar is shared with Free/Busy permissions only, from the Home ribbon in the Calendar module: select the Add button, and then select From Address Book.