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.

When someone shares a folder with you, it appears in the Shared section of your OneDrive.com. If you have Edit permissions to those shared folders, you can add them to the My files section of your OneDrive to make them easier to access and work with.

Select a file, select the Share tab at the top of File Explorer, and then in the Share with section select Specific people. Select a user on the network to share the file with, or select Everyone to give all network users access to the file.

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.

This issue occurs because the store worker process (Microsoft.Exchange.Store.Worker.exe) caches the security contexts that are not updated for the token of the account when you access a shared folder. It means that the security contexts do not contain the necessary group membership information.

On your SharePoint site, go to the library where you want to share files. Pick the file or folder you want to share by selecting its circle icon. Note: Sharing multiple items at the same time is not available. Instead, you can add the things you'd like to share to a folder and then share the folder.

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 >.

Cause. This issue occurs if the calendar that you're sharing is listed two times in the Calendar pane in Outlook. The duplicate calendar name appears the same as < Mailbox Owner >. Workaround. To work around this issue, use one of the following methods to remove the duplicate calendar in the Calendar pane.

Open and use a shared mailbox in Outlook 2016 and Outlook 2013. Learn how to add a shared mailbox to Outlook on the web, and send and reply to mail that's sent to the shared mailbox.

Open a shared Mail, Calendar or People folder in Outlook for Mac. Add a shared mailbox in 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.