{"id":16101,"date":"2026-04-24T16:01:23","date_gmt":"2026-04-24T07:01:23","guid":{"rendered":"https:\/\/m365jp.net\/?p=16101"},"modified":"2026-04-24T16:06:42","modified_gmt":"2026-04-24T07:06:42","slug":"servicedegradation-ex1233142-exchange-online-some-users-may-see-that-when-selecting-a-meeting-room-when-scheduling-meetings-it-changes-from-available-to-unavailable-6","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-04-24-servicedegradation-ex1233142-exchange-online-some-users-may-see-that-when-selecting-a-meeting-room-when-scheduling-meetings-it-changes-from-available-to-unavailable-6","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\/24\/2026 06:24:44<\/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 incremental rollout of the fix is ongoing and we\u2019re continuing to monitor its progress to ensure it completes as expected. We\u2019ll provide an estimation for full impact resolution when one becomes available.<\/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

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: Thursday, April 30, 2026, at 1:00 AM UTC<\/td>\n<\/tr>\n

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