{"id":15959,"date":"2026-04-16T09:00:55","date_gmt":"2026-04-16T00:00:55","guid":{"rendered":"https:\/\/m365jp.net\/?p=15959"},"modified":"2026-04-16T09:01:43","modified_gmt":"2026-04-16T00:01:43","slug":"servicedegradation-ex1233142-exchange-online-some-users-may-see-that-when-selecting-a-meeting-room-when-scheduling-meetings-it-changes-from-available-to-unavailable-4","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-04-16-servicedegradation-ex1233142-exchange-online-some-users-may-see-that-when-selecting-a-meeting-room-when-scheduling-meetings-it-changes-from-available-to-unavailable-4","title":{"rendered":"[serviceDegradation] EX1233142 | Exchange Online | Some users may see that when selecting a meeting room when scheduling meetings, it changes from available to unavailable"},"content":{"rendered":"
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EX1233142 | Exchange Online | Some users may see that when selecting a meeting room when scheduling meetings, it changes from available to unavailable<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may see that after selecting a meeting room when scheduling meetings, it changes from available to unavailable.<\/td>\n<\/tr>\n
Last Updated<\/th>\n04\/15\/2026 23:14:18<\/td>\n<\/tr>\n
Start Time<\/th>\n12\/08\/2025 03:04:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may see that when selecting a meeting room when scheduling meetings, it changes from available to unavailable<\/p>\n

User impact: Users may see that after selecting a meeting room when scheduling meetings, it changes from available to unavailable.<\/p>\n

More info: While we are working to remediate the impact, admins can mitigate the issue by assigning the desired working hours and the time zone for the meeting rooms.<\/p>\n

Current status: The deployment of our fix is progressing, and our review of service health telemetry shows continued signs of improvement. While we continue to monitor the deployment as it propagates throughout the affected service environment, we anticipate that users will experience relief from impact whilst the time we work to ascertain a full remediation timeline. <\/p>\n

Scope of impact: Any users that are trying to select a meeting room when scheduling meetings outside the room’s working hours in Exchange Online may be impacted. This information may be updated as our investigation continues.<\/p>\n

Start time: Monday, December 8, 2025, at 3:04 AM UTC<\/p>\n

Root cause: A recent expansion of the feature logic used to book rooms for scheduled meetings contains a code complication which automatically sets the meeting rooms’ default working hours to appear in Pacific Standard Time instead of their accurate time zone.<\/p>\n

Next update by: Friday, April 24, 2026, at 1:00 AM UTC<\/td>\n<\/tr>\n

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\u958b\u59cb\u6642\u9593:2025\u5e7412\u67088\u65e5(\u6708)\u5348\u524d3\u664204\u5206 UTC<\/p>\n

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