{"id":19112,"date":"2026-10-21T05:02:25","date_gmt":"2026-10-20T20:02:25","guid":{"rendered":"https:\/\/m365jp.net\/?p=19112"},"modified":"2026-10-21T05:07:15","modified_gmt":"2026-10-20T20:07:15","slug":"servicedegradation-tm1517449-microsoft-teams-users-may-not-receive-notifications-when-added-to-or-removed-from-tags-in-microsoft-teams","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-10-21-servicedegradation-tm1517449-microsoft-teams-users-may-not-receive-notifications-when-added-to-or-removed-from-tags-in-microsoft-teams","title":{"rendered":"[serviceDegradation] TM1517449 | Microsoft Teams | Users may not receive notifications when added to or removed from tags in Microsoft Teams"},"content":{"rendered":"
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TM1517449 | Microsoft Teams | Users may not receive notifications when added to or removed from tags in Microsoft Teams<\/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 not receive notifications when added to or removed from tags in Microsoft Teams.<\/td>\n<\/tr>\n
Last Updated<\/th>\n10\/20\/2026 19:52:12<\/td>\n<\/tr>\n
Start Time<\/th>\n10\/20\/2026 19:49:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may not receive notifications when added to or removed from tags in Microsoft Teams <\/p>\n

User impact: Users may not receive notifications when added to or removed from tags in Microsoft Teams. <\/p>\n

More info: This event may also impact notifications surrounding tag creation, deletion, or restoration.<\/p>\n

This only impact notifications and tag operations still succeed as expected. <\/p>\n

Current status: We identified a recent update to the authentication flow that contained the issue resulting in impact. We’re validating a fix to resolve this issue and will provide a remediation timeline as soon as one becomes available. <\/p>\n

Scope of impact: This event may impact any user, and any user may not receive notifications when added to or removed from tags in Microsoft Teams. This information may be updated as our investigation continues. <\/p>\n

Start time: Thursday, September 24, 2026, at 9:19 AM UTC <\/p>\n

Root cause: A recent update to the authentication flow that contained the issue resulting in impact. <\/p>\n

Next update by: Wednesday, October 21, 2026, at 8:30 PM UTC<\/td>\n<\/tr>\n

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