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2026-04-28	Status	Description
04:13 PM		Title: Admins' search parameters may be missing after performing a group search in the Exchange admin center User impact: Admins' search parameters may have been missing after performing a group search in the Exchange admin center. More info: Specifically, the search terms were removed upon initiating group searches. Other searches didn't appear to be affected. Final status: Following our completed fix deployment, we've confirmed with affected admins that search parameters when conducting group searches in the Exchange Online admin center have been restored, and that the impact has been remediated. Scope of impact: Any admin who performed a group search in the Exchange admin center may have been affected. Start time: Tuesday, April 14, 2026, at 11:37 AM UTC End time: Wednesday, April 22, 2026, at 12:00 AM UTC Root cause: A recent service-side configuration change contained a code issue that prevented the search parameters from populating after performing a group search in the Exchange admin center. Next steps: We're further analyzing the offending configuration change to find ways to improve our pre-deployment testing and validation processes and to prevent similar problems in the future. This is the final update for the event.