Microsoft faced an outage that prevented some users and administrators from accessing Microsoft 365 services and the admin center.
Reports from DownDetector indicated login issues affecting Microsoft 365 suite websites, Outlook services, and admin functionalities.
Microsoft identified the affected services, including SharePoint Online, Exchange Online, and the Microsoft 365 Admin Center. The company categorized the issue as a “critical service incident” and initially worked to determine the cause of the disruption.
By January 29, 13:44 EST, Microsoft reported that some users had regained access, and at 14:44 EST, the company confirmed that the outage had been fully mitigated. The issue was traced to an erroneous configuration change that blocked access requests. Microsoft reverted the change and monitored the system to ensure stability.
This marks another in a series of Microsoft 365 outages in recent months, including disruptions to Office web apps, Multi-Factor Authentication, and services like Teams and Outlook.
