Microsoft 365 Service Disruptions: Exchange Online and Teams Calendar Affected

Starting November 24, 2024, some Microsoft 365 services have been experiencing issues, particularly affecting Exchange Online and the calendar functionality in Microsoft Teams. This article provides detailed insights into the reported problems, Microsoft’s ongoing resolution efforts, and the progress made so far. We also explain how administrators can use the “MO941162” ID to track updates on the issue.

What is the Current Microsoft 365 Service Issue?

According to Microsoft’s official Service Status page and updates on their Microsoft 365 Status Twitter account, the following issues have been identified:

Affected Services

Outlook.com

• Users are unable to access their mailboxes through methods such as Outlook on the web, desktop clients, REST APIs, or Exchange ActiveSync (EAS).
• Delays in mail transport are also reported.

Microsoft Teams

• Calendar functionality is impacted, preventing users from loading, creating, or joining meetings.
• Users cannot initiate chats, add users, or create/edit new teams and channels.
• File and link lists fail to load properly in the Chat tab.
• Search functionality and status updates are unreliable.

Microsoft’s Response and Resolution Efforts

Microsoft is actively addressing the issue with the following steps:

1. Root Cause Identification
   • A recent system change was identified as the cause, leading to an overload of retry requests to servers.
2. Implementation of Fixes
   • Microsoft has rolled back the problematic change and optimized infrastructure processing capabilities to stabilize the affected environment.
3. Incremental Recovery
   • Services are gradually recovering, and full functionality is expected by November 26, 2024, at 3:00 AM UTC, barring any further complications.

What is MO941162?

MO941162 is a unique message ID provided to administrators in the Microsoft 365 Admin Center to track real-time updates and specific details about the ongoing issue.

How to Check MO941162

1. Log in to the Microsoft 365 Admin Center.
2. Navigate to the Service Health section in the left-hand menu.
3. Enter “MO941162” in the search bar to view updates related to this specific issue.

This ID includes information about the scope of the impact, the progress of fixes, and the next scheduled update.

What Users Can Do Now

While Microsoft works on restoring full functionality, users can take the following steps to minimize disruption:

1. Contact Your Administrator
   • If you’re part of an organization, reach out to your Microsoft 365 administrator for the latest updates and alternative solutions.
2. Use Alternative Tools
   • Consider temporary alternatives for email and scheduling to maintain productivity during the downtime.
3. Stay Updated
   • Follow official updates on:
     • Microsoft 365 Status Twitter account
     • Service Status Page

Conclusion

The ongoing Microsoft 365 service disruptions are affecting critical tools such as Exchange Online and Microsoft Teams. While Microsoft has made significant progress in mitigating the issues, full recovery is expected by November 26, 2024. For real-time updates, users and administrators should monitor the Service Health section in the Admin Center using ID MO941162 or check the official Microsoft 365 Status page.

If these issues are significantly impacting your work, stay in close communication with your administrator and consider implementing temporary workarounds.

Tamaglo

Thank you for reading to the end!