Can't see the Calendar folder of an online archive mailbox by using Microsoft Outlook Web App

Note

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Original KB number: 4341449

Symptoms

Assume that you have a cloud mailbox, and Exchange Online Archiving is enabled for the mailbox. In Outlook Web App (Microsoft Outlook Web App), you can't see the Calendar folder of the online-archive mailbox.

Cause

The behavior is by design.

Workaround

Use the Outlook client to access calendar items in the online-archive mailbox.