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Microsoft 365 search outage affects Outlook, SharePoint Online, and OneDrive users

🔄 Updated 1h ago
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Key points

  • Microsoft 365 search functionality was impacted.
  • Affected apps include Outlook, SharePoint Online, and OneDrive.
  • A recent deployment caused resource utilization inefficiency.
  • Microsoft developed and deployed a fix.

Search Functionality Disrupted

Microsoft reported that some users experienced issues with search capabilities across various Microsoft 365 applications. This disruption affected services such as Outlook on the web, Outlook desktop, SharePoint Online, and OneDrive.

Root Cause Identified

According to an incident report (MO1456424), Microsoft identified the root cause as a recent deployment. This deployment introduced a resource utilization inefficiency issue, leading to the service impact for users attempting to search for content.

Resolution and Previous Incidents

Microsoft developed and deployed a fix to address the resource pressure and restore service for affected users. The company has not specified which regions were impacted. This incident follows similar issues in the past, including a file search outage for OneDrive, Outlook on the web, and SharePoint Online last year, and a significant Azure and Microsoft 365 outage in North America in July due to a bug in an automated network maintenance system.

✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →

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Reporting from

Microsoft confirmed an outage affecting search functionality in Microsoft 365 applications, including Outlook, SharePoint Online, and OneDrive. The issue stemmed from a recent deployment that caused resource utilization problems, impacting some users attempting to search for content.