Sending meeting updates with REST calendar sharing feature in Outlook for Mac

Summary

This article discusses a change in behavior in Outlook for Mac when a meeting organizer changes meeting details or add/removes users from an existing meeting request.

MORE INFORMATION

We introduced a new calendar sharing feature in Outlook for Mac starting in build 16.23.1. This new feature utilizes the REST protocol instead of the EWS protocol. This feature is for O365 subscribers only. Benefits of this feature are documented here: Outlook for Mac improves calendar sharing performance with REST As the organizer of a meeting, you can change the meeting details or add or remove attendees. Starting with the new REST sync model there is a change in the behavior where the Outlook for Mac client no longer prompts for sending the meeting updates. Prior to REST calendar sync, when an attendee was added or deleted the organizer was prompted with the following dialog below asking to send the update to all attendees or to changed only.

You have added or deleted attendees.

With the new REST sync, the updates are sent to changed attendees (add/delete) only. When you make changes in the meeting details such as time/date, subject, or body of the meeting, the update is sent to all attendees.

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