M365 Service Status (0 degradation at 2026-01-03 08:05)

  • [Service Restored] 2025-12-30 02:39 Users may be unable to upload attachments from Microsoft OneDrive in Outlook on the web and the new Outlook desktop app
  • [Service Restored] 2025-12-30 12:02 Some users may have been intermittently unable to “Create a Copy” of files in Microsoft 365 apps for the web
  • [Service Restored] 2025-12-27 03:34 Some users may be unable to retrieve email addresses using the SharePoint Online Client Side Object Model (CSOM) API
  • [Service Restored] 2025-12-26 11:30 Some users may have been unable to access the My Templates and Viva Insights Outlook add-ins in Exchange Online
  • [Service Restored] 2025-12-24 02:43 Users may be unable to answer PSTN calls from call queues using any Microsoft Teams client

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    Users may be unable to upload attachments from Microsoft OneDrive in Outlook on the web and the new Outlook desktop app
    Start Time: 2025-11-27 02:27(JST)
    Last Update: 2025-12-30 02:39(JST)

    Status: Service Restored
    Affected Service: Exchange Online

    When users attempted to upload files from OneDrive, they may have
    received an error that stated: “We couldn’t retrieve the items you requested.”
    Additionally, the option to edit files in the browser was missing.


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    Some users may have been intermittently unable to “Create a Copy” of files in Microsoft 365 apps for the web
    Start Time: 2025-12-10 09:00(JST)
    Last Update: 2025-12-30 12:02(JST)

    Status: Service Restored
    Affected Service: Microsoft 365 for the web

    This issue specifically affected the “Create a Copy” function when
    users selected an online save location that differed from the default location
    in Microsoft Word, Microsoft PowerPoint, and Microsoft Excel for the web.

    Users encountered the error, “Copy could not be created… There was a problem
    creating a copy of this file. Please try again in some time.”

    The impact was intermittent and retry attempts may have been successful.

    As a workaround, users could open Microsoft OneDrive, navigate to the Files
    list, and use “Copy to” to create a duplicate.


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    Some users may be unable to retrieve email addresses using the SharePoint Online Client Side Object Model (CSOM) API
    Start Time: 2025-12-03 10:47(JST)
    Last Update: 2025-12-27 03:34(JST)

    Status: Service Restored
    Affected Service: SharePoint Online


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    Some users may have been unable to access the My Templates and Viva Insights Outlook add-ins in Exchange Online
    Start Time: 2025-10-22 11:12(JST)
    Last Update: 2025-12-26 11:30(JST)

    Status: Service Restored
    Affected Service: Exchange Online


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    Users may be unable to answer PSTN calls from call queues using any Microsoft Teams client
    Start Time: 2025-12-18 12:34(JST)
    Last Update: 2025-12-24 02:43(JST)

    Status: Service Restored
    Affected Service: Microsoft Teams

    When answering PSTN calls from call queues, affected users
    experienced calls that remained stuck in a loading state, preventing connection
    establishment.

    While we worked on a fix, non-Virtual Desktop Infrastructure (VDI) users could
    disable the setting (Settings, Devices, “Sync device buttons”) as a temporary
    remediation.

    For optimized VDI users that didn’t have the option to toggle the “Sync device
    buttons” setting, some users could work around this impact by accepting PSTN
    calls using a non-human interface device (HID).