You can't share the Calendar from another mailbox by using Outlook Web App in Microsoft 365

  • Article
  • Applies to:
    Exchange Online

Original KB number:   4091516

Symptoms

Consider the following scenario:

  • You try to open another mailbox by using Outlook Web App (OWA) in Microsoft 365.
  • You have Full Access permissions for the mailbox.
  • You locate the Calendar for the mailbox, and then you select Share.

In this scenario, nothing happens. You can't share the calendar.

Resolution

We have re-enabled the ability for Full Access users to share a calendar. The fix is fully available worldwide (build 526).

With this fix, a Full Access user in OWA will again see the option to share. When they add or change permissions, the associated sharing invitation email message will be sent.

The Full Access user can also remove permissions, but no email message will be sent.

Still need help? Go to Microsoft Community.