{"id":14074,"date":"2025-12-02T16:00:50","date_gmt":"2025-12-02T07:00:50","guid":{"rendered":"https:\/\/m365jp.net\/?p=14074"},"modified":"2025-12-02T16:01:39","modified_gmt":"2025-12-02T07:01:39","slug":"servicerestored-ex1184307-exchange-online-some-users-who-are-scheduling-meetings-may-not-receive-accurate-declined-email-messages-in-exchange-online","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-12-02-servicerestored-ex1184307-exchange-online-some-users-who-are-scheduling-meetings-may-not-receive-accurate-declined-email-messages-in-exchange-online","title":{"rendered":"[serviceRestored] EX1184307 | Exchange Online | Some users who are scheduling meetings may not receive accurate declined email messages in Exchange Online"},"content":{"rendered":"
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EX1184307 | Exchange Online | Some users who are scheduling meetings may not receive accurate declined email messages in Exchange Online<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers who were scheduling meetings may not have received accurate declined email messages in Exchange Online.<\/td>\n<\/tr>\n
Last Updated<\/th>\n12\/02\/2025 06:44:04<\/td>\n<\/tr>\n
Start Time<\/th>\n10\/27\/2025 00:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n11\/29\/2025 06:46:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users who are scheduling meetings may not receive accurate declined email messages in Exchange Online<\/p>\n

User impact: Users who were scheduling meetings may not have received accurate declined email messages in Exchange Online.<\/p>\n

More info: Specifically, when users sent a meeting invitation that was declined by a resource room, the email response may have been missing the Organizer’s details.
While we were focused on remediation, impacted users may have been able to avoid impact by utilizing the Auto Room Booking feature, which would show up automatically if they have an active Copilot license when scheduling meetings through the new Outlook desktop client, Outlook on the web, or Microsoft Teams. After adding attendees and selecting a time for the meeting, organizers with this feature available would see a “Add room with Copilot” button which would enable Auto Room Booking. Once this was enabled, users would see “Copilot Managed” and “Copilot will rebook if the room declines or the meeting was rescheduled”. Additionally, when viewing the “Places finder”, it should also show this feature as enabled, and when users click “Add a room or location”, then “Browse all rooms”, users will see “Rebook declined rooms” toggled on.
In order to enable this feature, users must have an active Copilot license and been scheduling meetings using the Outlook (new), Outlook on the web or Microsoft Teams.<\/p>\n

Final status: The fix has fully saturated in the affected service environment, and after validating internally in our test environment, we’ve confirmed that impact has been successfully remediated.<\/p>\n

Scope of impact: Some users who were scheduling meetings that were being declined by a resource room may have been impacted.<\/p>\n

Start time: Monday, October 27, 2025, at 12:00 AM UTC<\/p>\n

End time: Saturday, November 29, 2025, at 6:46 AM UTC<\/p>\n

Root cause: A recent deployment implemented a design change that’s preventing the Organizers’ details from reflecting properly when a meeting invitation was declined by a resource room.<\/p>\n

Next steps:
– We’re reviewing our feature and design change update testing to better identify the potential for impact to declined email message details prior to deployment, to help prevent similar impact in the future and improve our pre-deployment update testing processes.<\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

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