On Monday, June 1, 2026, a widespread disruption affected Microsoft’s cloud services globally. The issues primarily impacted the web-based versions of Microsoft 365 applications, notably Microsoft Teams and Office for the web. This resulted in users being unable to open files or send messages within their professional settings.
The official Microsoft 365 Status Twitter account acknowledged the situation, stating that the company was “investigating reports of some users unable to open files in Office for the web or Microsoft Teams.”
Developers soon provided further details. Their analysis of service telemetry indicated “increased error rates” across all Office web applications. For several hours, the exact cause of the outage and its global reach remained undisclosed.
After a few hours, an update from Microsoft 365 Status officially confirmed that the problems had been resolved. Consequently, access to files for Excel and SharePoint web applications, as well as the Teams messaging service, was fully restored for all users.
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