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.

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.

Shared mailboxes stop updating automatically. The shared mailbox status in the bottom bar in Outlook Desktop will show “Updating this folder”. In addition, you can confirm this is the issue by looking at the Sync Issues folder of the primary Exchange account in the Outlook profile.

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.

Symptoms. 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. You don't have permission to share your calendar with <email address>.

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.

You can choose to receive email notifications when someone updates an event on a calendar that's shared with you. Receive calendar updates. In Outlook select Settings > Calendar > Shared calendars.

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.

Starting in Cumulative Update 21 for Exchange Server 2013 and Cumulative Update 10 for Exchange Server 2016 in an on-premises Exchange Server environment, you can directly create or modify a remote shared mailbox by using the new parameter -shared with the following cmdlets:

To share your calendar with a colleague or friend, tap the calendar icon on the bottom of your screen. Open the settings for the calendar you wish to share, select + Add People and type the intended calendar recipient's name.