Microsoft 365 (Business or Enterprise) Outage History
Microsoft 365 (Business or Enterprise) is up right nowMicrosoft 365 (Business or Enterprise) had 14 outages in the last 2 years totaling 481h 52m of downtime — averaging 0.6 incidents per month.
There were 14 Microsoft 365 (Business or Enterprise) outages since April 28, 2026 totaling 481h 52m of downtime. Each is summarised below — incident details, duration, and resolution information.
Admins may be unable to review Service health or Message center postings in the Microsoft 365 admin center
Affected: Microsoft 365 (Business or Enterprise)
Timeline · 4 updates
Admins intermittently may have been unable to access the Microsoft 365 admin center
Timeline · 4 updates
Users in the United States and United Kingdom may be unable to access Microsoft 365 services
Timeline · 5 updates
Users may experience issues when utilizing multiple Microsoft 365 services
Timeline · 40 updates
Users may be experiencing issues accessing or using Microsoft 365 services in the North America region
Timeline · 6 updates
Users can't build or edit agents within Microsoft 365 Copilot
Timeline · 1 update
- resolved Jul 08, 2026, 06:20 PM UTC
User impact: Users are unable to build or edit agents within Microsoft Copilot. Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication will expire in 24 hours. This is the final update for the event.
Users experience service quality issues in Microsoft Copilot for Microsoft 365
Timeline · 1 update
- monitoring Jul 08, 2026, 06:09 PM UTC
User impact: Users are experiencing issues in the service. Current status: We're investigating a potential issue with the Microsoft Copilot for Microsoft 365 and are checking for impact to your organization. We'll provide an update within 30 minutes.
Admins may not have been able to view Service Health Dashboard (SHD) and Message Center posts in the admin center
Timeline · 4 updates
Users are unable to access Microsoft 365 Copilot Chat or portal.office.com
Timeline · 2 updates
Investigating user reports of Microsoft 365 Copilot issues
Timeline · 1 update
- monitoring Jun 01, 2026, 03:18 PM UTC
User impact: We don't have details on impact yet. We're seeing an increase in user reported issues above our alerting threshold. Current status: We are reviewing service telemetry and available information to determine if there is an issue happening and we'll update this message shortly with our latest findings. This communication serves as a preliminary notification about a potential issue affecting your service.
We're looking into a potential problem impacting Microsoft 365 Copilot
Timeline · 3 updates
- monitoring May 05, 2026, 04:21 PM UTC
User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue with Microsoft 365 Copilot and checking for impact to your organization. We'll provide an update within 30 minutes.
- monitoring May 11, 2026, 08:35 PM UTC
User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot and checking for impact to your organization. We'll provide an update within 30 minutes.
- resolved May 11, 2026, 08:53 PM UTC
User impact: We're checking for potential impact to your users. Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication has expired. This is the final update for this event.
Some users may be unable to select "Allow editing" when using Microsoft 365 Copilot through Word or Excel
Timeline · 3 updates
- monitoring May 05, 2026, 04:59 PM UTC
User impact: Users may be unable to select "Allow editing" when using Copilot through Word or Excel. More info: Affected users may be unable to click on the drop-down menu to select "Allow editing" and may only be able to utilize "Chat mode" for Copilot queries through Word or Excel. Current status: We've received reports from a subset of users who have stated they are unable to select "Allow editing" when using Copilot through Word or Excel. We've isolated that a recent update intended to add additional agent functionality for Copilot premium users incorrectly marked "Allow editing" and other agent mode functionalities to be unavailable to non-premium users. We're deploying a code fix to address this and we anticipate the code fix to be fully deployed by our next scheduled update. Start time: Friday, May 01, 2026, at 4:17 PM UTC Next update by: Tuesday, May 05, 2026, at 6:00 PM UTC
- monitoring May 05, 2026, 05:41 PM UTC
User impact: Users may be unable to select "Allow editing" when using Copilot through Word or Excel. More info: Affected users may be unable to click on the drop-down menu to select "Allow editing" and may only be able to utilize "Chat mode" for Copilot queries through Word or Excel. Current status: Our fix deployment is currently at 90 percent saturation but is taking longer than expected to complete. We're working to expedite the remainder of our deployment, and we anticipate the code fix to be fully deployed by our next scheduled update. Start time: Friday, May 01, 2026, at 4:17 PM UTC Next update by: Wednesday, May 06, 2026, at 12:00 AM UTC
- resolved May 06, 2026, 12:08 AM UTC
User impact: Users may be unable to select "Allow editing" when using Copilot through Word or Excel. More info: Affected users may have been unable to click on the drop-down menu to select "Allow editing" and may have only been able to utilize "Chat mode" for Copilot queries through Word or Excel. Final status: We confirmed that an eligibility check error introduced in a recent update caused limited access for users. We developed and deployed a fix to correct the offending update, and after a period of monitoring the service health telemetry, confirmed that the errors associated with impact have been resolved and the issue was remediated by our actions. Start time: Friday, May 1, 2026, at 4:17 PM UTC End time: Monday, May 4, 2026, at 11:32 PM UTC This is the final update for the event.
We're looking into a potential problem impacting Microsoft 365 Copilot chat
Timeline · 2 updates
- monitoring Apr 28, 2026, 09:46 PM UTC
User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot Chat and checking for impact to your organization. We'll provide an update within 30 minutes.
- resolved Apr 28, 2026, 09:52 PM UTC
User impact: We're checking for potential impact to your users. Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication has expired. This is the final update for the event.