M365 Service Status (5 degradations at 2026-01-24 05:10)
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User may see a User Interface (UI) glitch in Microsoft Teams which shows a added bar at the top of each window
Start Time: 2026-01-16 09:00(JST)
Last Update: 2026-01-23 10:04(JST)
Next Update By: 2026-01-24 04:30(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
This specifically impact users that are using webview2 version
“144.0.3719.82” on Windows 10 devices.
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Users may be unable to delete email messages after running the QUIT command when POP3 connection method is used
Last Update: 2026-01-22 09:03(JST)
Next Update By: 2026-01-23 07:00(JST)
Status: Service Degradation
Affected Service: Exchange Online
Specifically, POP3 users can read and download their email messages,
but any messages they delete may not actually be removed, because the session
fails to close properly. If a message is deleted on Exchange Online using the
DELE command, the POP3 QUIT command may fail, preventing the session from
closing cleanly and causing messages marked for deletion to remain in the
mailbox.
If the user is not using POP3, they are not impacted.
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Some users that are mentioned in list comments in SharePoint Online may not receive email notifications
Last Update: 2026-01-21 09:19(JST)
Next Update By: 2026-01-21 10:30(JST)
Status: Service Degradation
Affected Service: SharePoint Online
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Some users may be unable to update or add Copilot Studio agents in Microsoft Teams and receive an error
Last Update: 2026-01-17 05:50(JST)
Next Update By: 2026-01-21 06:00(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
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Some users may be unable to open some SharePoint Online list links through Microsoft Teams on iOS and receive an error
Last Update: 2026-01-14 02:54(JST)
Next Update By: 2026-01-14 06:30(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
Specifically, users attempting to access SharePoint lists through
Teams on iOS may receive an access permissions error stating: “Permission
required – You do not have permission to open this file.”
While we’re focused on remediation, users on iOS can access the affected pages
and list links by manually copying the impacted URLs from the Teams chat to open
them elsewhere. Additionally, users with access to alternative Microsoft Teams
access methods such as the Microsoft Teams desktop client and web app can use
these to avoid impact.
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Users may not receive Microsoft Copilot Chat responses or experience latency using GPT 5.2 Quick response
Last Update: 2026-01-24 05:05(JST)
Status: False Positive
Affected Service: Microsoft Copilot (Microsoft 365)
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Users’ Outlook for iOS app version 5.2602.0 may crash or freeze on iPad devices
Start Time: 2026-01-21 08:00(JST)
Last Update: 2026-01-24 03:30(JST)
Status: Service Restored
Affected Service: Exchange Online
Affected users could launch Outlook mobile while in Airplane Mode and
then re-enable Wi-Fi and/or cellular data as a way to circumvent impact while we
worked towards mitigation.
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Users may be seeing degraded service functionality or be unable to access multiple Microsoft 365 services
Start Time: 2026-01-23 03:55(JST)
Last Update: 2026-01-23 03:33(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Some of the impacted service functions included, but were not limited
to:
– Sending and receiving email through Exchange Online, including notification
email from Microsoft Viva Engage as well as subscription email for Microsoft
Fabric users. Users may be receiving a “451 4.3.2 temporary server issue” error
message when attempting to send or receive email through Outlook.
– Collecting message traces in Exchange Online.
– Searching within SharePoint Online, Microsoft OneDrive, and/or Microsoft
Teams.
– Accessing the service portals, including Microsoft Purview, Microsoft Defender
XDR, and the Microsoft 365 admin center.
– Creating chats, meetings, teams, channels or adding members in Microsoft
Teams. Additionally, some users may have been unable to create breakout rooms or
Microsoft Teams live events.
– Receiving presence or location information in Microsoft Teams.
– Existing or new meeting options for Facilitator in Teams may not have been
honored.
– Applying and managing sensitivity labels, interactive operations on reports,
and artifacts with sensitivity labels in Microsoft Fabric.
– Print registration and printer jobs may have failed in Universal Print.
– Microsoft To Do users may have experienced synchronization issues, preventing
tasks from updating across devices. Additionally, tasks created in Shared Lists
may not have appeared for collaborators.
– Microsoft Defender for Cloud Apps users may not have been able to view
insights or view, create, or update OAuth enabled app policies. Reporting data
may have also appeared blank, even though no errors were shown.
– Microsoft Defender for Office (MDO) users may have experienced limited access
to administrative and SOC experiences, including the quarantine portal and Safe
Links protection.
– Microsoft Power Automate users may have been unable to utilize Power Automate
connectors including Office 365, Office 365 Users, Office 365 Groups, and Office
365 Groups Mail.
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Users may be unable to create chats, meetings, teams, channels or add members in Microsoft Teams
Last Update: 2026-01-23 06:00(JST)
Status: False Positive
Affected Service: Microsoft Teams
Users may also be unable to edit or delete channels, create virtual
events, and create meetups.
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Users can’t access the Threat Analytics page in Microsoft Defender XDR portal
Start Time: 2026-01-22 09:08(JST)
Last Update: 2026-01-23 02:07(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
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Users’ Microsoft Power Automate flows may not trigger when users create, update, or delete shifts in Microsoft Teams
Start Time: 2026-01-21 11:30(JST)
Last Update: 2026-01-22 05:24(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Flows that were configured with “When a Shift was created, updated or
deleted” may have failed to trigger when users performed the actions in
Microsoft Teams.
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Users interacting with Microsoft Copilot (Microsoft 365) see delays up to four minutes in responses
Start Time: 2026-01-21 05:30(JST)
Last Update: 2026-01-22 05:07(JST)
Status: Service Restored
Affected Service: Microsoft Copilot (Microsoft 365)
This issue affected Copilot responses in all Microsoft 365 services
and apps, including Microsoft Teams Facilitator. Response delays ranged from 50
seconds to four minutes.
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Users may be unable to access Microsoft 365 services
Start Time: 2026-01-22 01:10(JST)
Last Update: 2026-01-22 03:29(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
As this issue was a result of a third-party ISP Autonomous System
Number (ASN) routing configuration issue; the impact to Microsoft 365 services
may have manifested in a multitude of ways. For example, some users may have
been unable to access the services and portals altogether, whereas others may
have seen impact more variable, such being intermittently unable to send or
receive email.
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Some users may experience automated email remediation actions affecting more emails than intended in Exchange Online
Last Update: 2026-01-22 01:50(JST)
Status: False Positive
Affected Service: Exchange Online
Some users utilizing automated remediation based on email subject
matching, may experience additional emails being included in a remediation
action beyond the originally intended scope.
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Some users may have been unable to run Microsoft Power Automate flows
Start Time: 2026-01-20 07:41(JST)
Last Update: 2026-01-20 11:48(JST)
Status: Service Restored
Affected Service: Microsoft Power Automate in Microsoft 365
Users may have been unable to run flows, use connectors, or perform
operations that rely on Power Automate services.
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Some users may have been unable to open Microsoft Power Apps
Start Time: 2026-01-20 07:41(JST)
Last Update: 2026-01-20 11:46(JST)
Status: Service Restored
Affected Service: Power Apps in Microsoft 365
Users may have been unable to open Power Apps, load data from
SharePoint-backed applications, or use connectors that rely on Power Apps
services.
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Some users may have experienced errors and disruptions when starting or continuing chats in Microsoft Copilot
Start Time: 2026-01-19 02:00(JST)
Last Update: 2026-01-20 12:23(JST)
Status: Service Restored
Affected Service: Microsoft Copilot (Microsoft 365)
Affected users received error messages such as: “A problem has
occurred”, “Something went wrong,” or that the service is unavailable.
Some users were also unable to publish agents created in Microsoft Copilot
within Microsoft Teams.
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Users may have been unable to send and receive email messages in Exchange Online
Start Time: 2026-01-19 02:00(JST)
Last Update: 2026-01-19 10:34(JST)
Status: Service Restored
Affected Service: Exchange Online
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Some users may experience degraded video and screensharing quality in Microsoft Teams
Start Time: 2025-12-31 10:00(JST)
Last Update: 2026-01-19 03:27(JST)
Status: Service Restored
Affected Service: Microsoft Teams
The issue wasn’t limited to Microsoft Teams Rooms (MTR) devices and
also affected desktop clients and other scenarios.
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Some users may be unable to select schedule dates within SharePoint Online pages
Start Time: 2026-01-15 03:47(JST)
Last Update: 2026-01-17 09:27(JST)
Status: Service Restored
Affected Service: SharePoint Online
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Some users that create meetings using Outlook and Microsoft Teams may see that the meeting join link is not as expected
Last Update: 2026-01-16 07:20(JST)
Status: False Positive
Affected Service: Microsoft Teams
Specifically, the meeting join link may appear as a plain URL instead
of a hyperlink. Users’ ability to join the meetings is not impacted.
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Problems with Microsoft Copilot (Microsoft 365)
Last Update: 2026-01-16 01:34(JST)
Status: False Positive
Affected Service: Microsoft Copilot (Microsoft 365)
Users may have seen an error stating: “I’m sorry, I’m having trouble
responding to requests right now. Let’s try this again in a bit.”
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Users may be unable to open People Cards in SharePoint Online
Start Time: 2026-01-15 03:47(JST)
Last Update: 2026-01-16 01:30(JST)
Status: Service Restored
Affected Service: SharePoint Online
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Users may see higher battery and CPU usage in Microsoft Teams calls when participants screenshare or share video
Start Time: 2025-12-22 03:14(JST)
Last Update: 2026-01-15 03:58(JST)
Status: Service Restored
Affected Service: Microsoft Teams
Microsoft Teams users on Windows may have seen higher battery and CPU
usage when viewing a screenshare or video from other participants, which could
have led to increased battery drain as more participants shared video. This
issue only impacted the Microsoft Teams desktop client on Windows.
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Users may have been unable to access shared Microsoft To Do lists
Start Time: 2025-12-30 05:00(JST)
Last Update: 2026-01-14 10:58(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Users may also have been unable to open shared To Do list invitation
links.
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Some users may not be able to get the latest Microsoft 365 Apps
Start Time: 2026-01-14 12:30(JST)
Last Update: 2026-01-14 08:13(JST)
Status: Service Restored
Affected Service: Microsoft 365 apps
This issue specifically impacted organizations where these updates
were facilitated through the Cloud Update process in the Microsoft 365 apps
admin center.
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Users may not receive email notifications generated from the SharePoint Online Rules
Start Time: 2025-12-08 09:00(JST)
Last Update: 2026-01-14 03:43(JST)
Status: Service Restored
Affected Service: SharePoint Online
Users could have created a new rule with the same settings as an
affected rule to bypass the impact while we worked to resolve this issue.
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Users may be unable to use the AI features in the Create module of Microsoft Copilot (Microsoft 365)
Start Time: 2025-12-16 03:35(JST)
Last Update: 2026-01-13 06:52(JST)
Status: Service Restored
Affected Service: Microsoft Copilot (Microsoft 365)
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Users may have been unable to search new users in Microsoft Teams by their display name
Start Time: 2025-12-10 09:00(JST)
Last Update: 2026-01-12 08:00(JST)
Status: Service Restored
Affected Service: Microsoft Teams
This may have impacted users in both the desktop and web clients.
Users could still search new users using their email address.
