{"id":15420,"date":"2026-03-17T21:01:12","date_gmt":"2026-03-17T12:01:12","guid":{"rendered":"https:\/\/m365jp.net\/?p=15420"},"modified":"2026-03-17T21:01:33","modified_gmt":"2026-03-17T12:01:33","slug":"servicedegradation-ex1213792-exchange-online-admins-cant-upgrade-groups-from-distributions-lists-to-unified-groups-using-powershell-or-the-exchange-admin-center-5","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-03-17-servicedegradation-ex1213792-exchange-online-admins-cant-upgrade-groups-from-distributions-lists-to-unified-groups-using-powershell-or-the-exchange-admin-center-5","title":{"rendered":"[serviceDegradation] EX1213792 | Exchange Online | Admins can\u2019t upgrade groups from Distributions Lists to Unified Groups using PowerShell or the Exchange admin center"},"content":{"rendered":"
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EX1213792 | Exchange Online | Admins can\u2019t upgrade groups from Distributions Lists to Unified Groups using PowerShell or the Exchange admin center<\/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>\nAdmins can\u2019t upgrade groups from Distributions Lists to Unified Groups using PowerShell or the Exchange admin center.<\/td>\n<\/tr>\n
Last Updated<\/th>\n03\/17\/2026 11:54:38<\/td>\n<\/tr>\n
Start Time<\/th>\n01\/06\/2026 06:49:02<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Admins can\u2019t upgrade groups from Distributions Lists to Unified Groups using PowerShell or the Exchange admin center<\/p>\n

User impact: Admins can\u2019t upgrade groups from Distributions Lists to Unified Groups using PowerShell or the Exchange admin center.<\/p>\n

Current status: We’ve determined that a timing issue during a recent migration is causing backend systems to act before directory changes are fully synchronized. This is leading to failures during group configuration, preventing the Distribution List from successfully upgrading to a Unified Group. We’re monitoring the deployment fix as it saturates across all impacted environments, which is taking longer than anticipated due to additional validation steps.<\/p>\n

Scope of impact: Impact is specific to some admins attempting to upgrade groups from Distribution Lists to Unified Groups using PowerShell or the Exchange admin center. This section may be updated as our investigation continues.<\/p>\n

Start time: Friday, October 24, 2025, at 11:32 AM UTC <\/p>\n

Root cause: A timing issue during a recent migration is causing backend systems to act before directory changes are fully synchronized.<\/p>\n

Next update by: Wednesday, March 18, 2026, at 11:30 AM UTC<\/td>\n<\/tr>\n

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