M365 Service Status (0 degradation at 2025-12-31 08:04)
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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).
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Some users may be unable to access Microsoft 365 apps through the app launcher in Outlook on the web
Start Time: 2025-11-27 01:30(JST)
Last Update: 2025-12-23 05:15(JST)
Status: Service Restored
Affected Service: Exchange Online
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Users may be unable to open the Microsoft OneDrive app on Samsung Android devices
Last Update: 2025-12-23 03:20(JST)
Status: False Positive
Affected Service: Microsoft OneDrive
This issue may be impacting any user trying to open the OneDrive app
from any Samsung Android device that has the Samsung account app linked with a
Microsoft 365 account.
Users with affected devices that aren’t managed through Intune can immediately
update those devices to the latest version of the Samsung account app to
remediate this issue.
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Users may have seen a message “Classic Teams is no longer available” when opening Microsoft Teams in web applications
Start Time: 2025-12-20 07:53(JST)
Last Update: 2025-12-22 07:23(JST)
Status: Service Restored
Affected Service: Microsoft Teams
Specifically, when users attempted to open Microsoft Teams through
web apps such as Outlook, OneNote, or SharePoint Online, they may have been
redirected and received the following message, “Classic Teams is no longer
available”. However, users could either click “Use Teams on the web” or directly
open the Microsoft Teams app through their mobile, desktop or web app.
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Some Virtual Desktop Infrastructure (VDI) users were unable to share screen or video during Microsoft Teams meetings
Start Time: 2025-11-20 07:18(JST)
Last Update: 2025-12-20 06:45(JST)
Status: Service Restored
Affected Service: Microsoft Teams
When users attempted to share their screen or video during Microsoft
Teams meetings when using VDI with Omnissa devices, the participants may have
only seen a blank screen.
