You can work around this issue by taking the following steps: Remove the affected calendar (s) from Outlook Desktop. Enable “Turn on shared calendar improvements” in the Calendar Properties. For information about how to turn on this setting, see Outlook calendar sharing updates. Restart Outlook Desktop.

For example, you can share a single mailbox across several individuals where all incoming and outgoing mail are from that mailbox. Or you can share one or more folders, or your entire mailbox with others. You can even allow others the ability to manage your calendar or mailbox.

To share one or more folders or to share your entire mailbox with others in your organization, follow these steps: Navigate to the folder you want to share. Right-click on the folder and choose Sharing and permissions.

When you try to share a calendar by using Microsoft Outlook, Outlook on the web, or Exchange Online PowerShell, you receive one or more of the following errors messages. Outlook for Windows. This calendar can't be shared by one or more people. Outlook on the web.

In the Sharing and permissions page, type the name or email address of the person you want to share your calendar with and assign delegate access. Though you can share your calendar with more than one person, you can only add one person at a time from Outlook on the web.

Learn how to open a shared mailbox in Outlook. Shared mailboxes let a group of users view and send email, and share a calender, and open a contact list from a common mailbox.

This article discusses issues after you enable Shared Calendar Improvements as detailed here: Outlook calendar sharing updates. STATUS: INVESTIGATING. The Outlook team is currently investigating the following issues and will update this article when more information becomes available.

Get solutions if your calendar won't sync or you can't edit shared calendars in Outlook.

Fixes an issue in which you receive a "STATUS_OBJECT_NAME_NOT_FOUND" error message when you open a newly-created file in a shared folder. This issue occurs when you enable the SMB version 2 directory cache in Windows 7 or in Windows Server 2008 R2.

Learn how to open a shared mailbox in the Outlook Web App. Shared mailboxes let a group of users view and send email, and share a calendar, from a common mailbox.