Microsoft 365 Search Breaks Down for Outlook, SharePoint, and OneDrive Users
Microsoft has confirmed a widespread outage affecting search functionality across several Microsoft 365 apps, including Outlook on the web, Outlook desktop, SharePoint Online, and OneDrive. Affected users are reporting that search queries return no results or fail to load entirely, making it difficult to locate emails, documents, and files stored in the cloud.
The company acknowledged the issue through its service health dashboard and says engineers are investigating the root cause. No timeline for a fix has been given yet, and it's unclear how many users or tenants are impacted globally.
This isn't the first time Microsoft 365's search infrastructure has hiccuped, as the service has faced similar indexing and backend problems in the past.
Why it matters: Search is core infrastructure for knowledge work — when it fails, productivity across entire organizations grinds to a halt, not just for a single app. It's another reminder that centralizing so much business-critical functionality in one cloud provider creates a single point of failure with outsized impact.