Microsoft has issued a warning about an outage affecting certain parts of its productivity suite. According to the official Microsoft 365 Status profile on X, the company has discovered problems with opening Office files and accessing the Teams messenger. The outage primarily affects web-based Office apps, such as Excel, SharePoint, and more.
We’re investigating reports that some users are unable to open files in Office for the web or Microsoft Teams. For more information, please see MO1329446 in the admin center.
— Microsoft 365 Status (@MSFT365Status) June 1, 2026
Shortly after, the company added:
We’re analyzing service telemetry and have identified elevated error rates across Office for the web experiences. We’re correlating these error patterns across service dependencies to determine the next steps required. For more information, please see MO1329446 in the admin…
— Microsoft 365 Status (@MSFT365Status) June 1, 2026
Microsoft is not detailing the scope of the outage, nor is it saying which areas or countries are affected the most. Therefore, if you are trying to be productive on the first Monday of the month, Microsoft may have just given you a reason to procrastinate a little while it is fixing its productivity apps.
We will update the story once there is more information on it.
Update: Microsoft confirmed that the issue has been resolved:
We've confirmed that the impact is no longer occurring and the final details are being provided under MO1329446 in the admin center.
— Microsoft 365 Status (@MSFT365Status) June 1, 2026
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