The reported disruption is affecting multiple Microsoft 365 cloud services globally, including:

Mr Sonbir 30 Reputation points
2026-11-13T04:14:06.8733333+00:00

Dear Microsoft Support Team,

We would like to raise a concern regarding the ongoing Microsoft 365 service degradation under Incident ID: MO1550821, along with the related Exchange Online incident EX1550543.

The reported disruption is affecting multiple Microsoft 365 cloud services globally, including:

  • Exchange Online / Outlook

Microsoft Teams

SharePoint Online

Microsoft 365 Copilot

Microsoft Planner

As per the reported updates, the disruption is attributed to elevated infrastructure load across multiple regions, resulting in connectivity and service accessibility issues.

This disruption is impacting business operations and user productivity. We request your team to prioritize the investigation and provide the following information:

What is the confirmed root cause of this widespread service disruption?

What mitigation measures are currently being implemented?

What is the estimated timeline for complete service restoration?

What steps are being taken to prevent recurrence of similar incidents?

Can Microsoft provide regular progress updates until all affected services are fully restored?

We request an urgent update and appropriate resolution, as the disruption is affecting multiple business-critical services.

We appreciate your immediate attention and support.

Best Regards,

Microsoft 365 and Office | SharePoint | For business | Windows
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  1. Mr Sonbir 30 Reputation points
    2026-11-13T13:44:28.75+00:00

    Outlook services appear to be recovering. If you are still experiencing connectivity or synchronization issues, please follow these steps:

    Close the Outlook application completely and reopen it.

    Wait for approximately one minute to allow Outlook to reconnect and start syncing with the server.

    Keep Outlook open and allow sufficient time for synchronization to complete.

    1. If you have emails or requests waiting in the Outbox or sync queue, allow Outlook to process and synchronize them with the server.

    working fine now

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  2. Mr Sonbir 30 Reputation points
    2026-11-13T13:44:11.43+00:00

    We are still Experiencing the same issue.

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  3. Vincent Choy 11,315 Reputation points Volunteer Moderator
    2026-11-13T06:07:18.62+00:00

    You can use this link to monitor repair progress.

    https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect

    The reports are quite detailed.

    Microsoft also provides a 99.9% money back SLA which you can also explore if the disruption to your firm is serious.

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  4. JeseminQH 1,210 Reputation points Independent Advisor
    2026-11-13T04:49:37.35+00:00

    Hi @Mr Sonbir

    Please note that this platform is a user to user community forum rather than an official Microsoft Support ticketing channel. There are no Microsoft Support engineers or incident response personnel monitoring this board to provide direct escalations or customized updates. 

    Regarding the disruption you mentioned, Microsoft's current notification for Incident ID MO1550821 classifies the issue as a Service Degradation affecting Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot, and Microsoft Defender XDR. 

    Microsoft has identified that the affected infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors. Microsoft is currently restarting and repairing impacted portions of the infrastructure to restore capacity. Additionally, they are investigating an unexpected increase in a specific type of service traffic and evaluating options to redirect traffic to alternative infrastructure to expedite recovery. 

    Because live incident tracking is not available on this forum, the best course of action is to have your Global Admins monitor the situation directly inside the Microsoft 365 Admin Center under Health > Service health.  

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    If you're an end user without admin permissions, kindly reach out to your Microsoft 365 administrator and ask them to monitor this incident and keep you informed of any relevant updates.

    As a fellow forum user, I’m unable to directly influence or expedite the resolution, nor can I provide a confirmed timeline for when everything will return to normal. However, please rest assured that the relevant teams are working to get this resolved as quickly as possible.

    I really appreciate your patience and understanding here. Hopefully, the issue will be fully resolved soon so that everything is back up and running smoothly for all of us.

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  5. Mr Sonbir 30 Reputation points
    2026-11-13T04:16:04.27+00:00

    We are still Experiencing the same issue.

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