Microsoft has confirmed it’s actively investigating a brand new service incident affecting a number of core providers throughout the Microsoft 365 ecosystem.
The corporate acknowledged the disruption on Wednesday night, following studies of connectivity points and repair degradation for customers counting on its cloud-based productiveness instruments.
The incident, tracked below Concern ID MO1220495, formally started on January 21, 2026, at 10:15 PM IST. Whereas the complete scope of the disruption remains to be being decided, Microsoft has listed three major providers as “Affected”: Trade On-line, Microsoft Groups, and the broader Microsoft 365 suite.
This disruption poses a big problem for enterprise customers, as Trade On-line and Groups are important parts of each day enterprise communication.
Customers trying to entry emails, be part of conferences, or use collaboration instruments throughout the suite could expertise intermittent failures, latency, or an incapability to sign up.
In line with the newest standing replace offered at 10:37 PM IST, Microsoft engineers are at the moment within the diagnostic part. The standing stays listed as “Investigating,” indicating that the basis trigger has not but been remoted or remediated.
We have acquired studies and are investigating a problem affecting Microsoft 365 providers, together with Groups and Outlook. Additional data may be discovered within the Microsoft 365 admin heart below MO1220495 or at Microsoft 365 Standing (@MSFT365Status) January 21, 2026
Microsoft has not but launched particular particulars on the “Scope of impression,” so it’s unclear whether or not it is a international outage or restricted to particular geographic areas.
IT directors are suggested to examine the Service Well being Dashboard (SHD) within the Microsoft 365 admin heart for granular particulars related to their particular tenant.
The corporate has dedicated to offering common updates because the investigation proceeds. As of the final communication, the state of affairs is growing, and no estimated time for decision (ETR) has been offered.
Organizations counting on these providers ought to put together for potential workflow interruptions and monitor official Microsoft channels for the subsequent scheduled replace.
Replace 1[11:11 pm IST]: In a press release launched shortly after the incident started, Microsoft offered particular perception into the supply of the disruption. “Our investigation signifies a attainable third-party networking subject could also be affecting entry to Microsoft 365 providers, together with Groups and Outlook for some customers,” the corporate said.
Our investigation signifies a attainable third-party networking subject could also be affecting entry to Microsoft 365 providers, together with Groups and Outlook for some customers. Additional data may be discovered within the Microsoft 365 admin heart below MO1220495 or at Microsoft 365 Standing (@MSFT365Status) January 21, 2026
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