Microsoft 365 Alert – Service Degradation – Microsoft 365 suite – Some users may not receive results when performing searches in SharePoint Online – RESOLVED

Announcements Shagufta Naaz

04/05/2026 08:42:00 AM

NHSmail Reference: INC46815875

Microsoft Reference: MO1297751

Issue Status: RESOLVED

Issue Description: Some users may not receive results when performing searches in SharePoint Online.

Final Update: 12/05/2026 09:16:00 AM– Microsoft were unable to contact impacted users to confirm if this was resolved, but their service health telemetry continues to indicate that their efforts to redirect, rebalance, and optimize traffic within the subset of affected infrastructure has successfully remediated impact.

Scope of impact: Some users attempting searches in SharePoint Online may be impacted. This section may be updated as our investigation continues.

Root cause: An unexpected increase in request traffic and search request queuing is causing a subset of service infrastructure that processes SharePoint Online search requests to enter a suboptimal state, resulting in impact.

Next Steps: Microsoft are reviewing and improving our automated recovery services to prevent impact from future unexpected traffic increases.