Some users may not receive results when performing searches in SharePoint Online
ID: MO1297751
Issue type: Incident
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Impacted services
Microsoft 365 suite
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Details
Title: Some users may not receive results when performing searches in SharePoint Online
User impact: Users may not have received results when performing searches in SharePoint Online.
Final status: We were unable to contact impacted users to confirm if this was resolved, but our service health telemetry continues to indicate that our efforts to redirect, rebalance, and optimize traffic within the subset of affected infrastructure has successfully remediated impact.
Scope of impact: Some users performing searches in SharePoint Online may have been impacted by this event.
Start time: Monday, April 20, 2026, at 12:00 AM UTC
End time: Monday, May 11, 2026, at 1:00 AM UTC
Root cause: An unexpected increase in request traffic and search request queuing caused a subset of service infrastructure that processes SharePoint Online search requests to enter a suboptimal state, resulting in impact.
Next steps: - We're reviewing and improving our automated recovery services to prevent impact from future unexpected traffic increases.
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