M365 Service Status (8 degradations at 2025-08-28 09:19)
↑Return_to_index
Some users may be unable to open certain file types directly within Microsoft Teams
Last Update: 2025-08-28 09:16(JST)
Next Update By: 2025-08-28 10:30(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
While we’re focused on remediation, our preliminary testing indicates
affected users should still be able to open impacted files by selecting the
alternate “Open in desktop” or “Open in browser” options.
Impact appears specific to certain file and document types including Microsoft
Word (.docx), Microsoft Visio (.vsdx), Microsoft Excel (.xlsx), Microsoft
PowerPoint (.pptx) and Microsoft OneNote (.one) files.
↑Return_to_index
Some users may be unable to modify Exchange Online groups in Outlook on the web and encounter an error
Last Update: 2025-08-27 10:05(JST)
Next Update By: 2025-09-04 06:30(JST)
Status: Service Degradation
Affected Service: Exchange Online
Affected users may encounter the following error:
“This doesn’t look right.”
As a workaround, users who have access may be able to utilize the Outlook
desktop client.
↑Return_to_index
Users may not see updated unread message counts for some folders in Outlook on the web and Outlook for Mac
Start Time: 2025-08-23 08:00(JST)
Last Update: 2025-08-27 04:07(JST)
Next Update By: 2025-08-27 06:00(JST)
Status: Service Degradation
Affected Service: Exchange Online
Users may need to refresh to see updated counts.
↑Return_to_index
Some users can’t create or publish Assignments in Microsoft OneNote or create a class notebook in a team
Start Time: 2025-08-11 09:00(JST)
Last Update: 2025-08-26 10:48(JST)
Next Update By: 2025-09-02 10:30(JST)
Status: Service Degradation
Affected Service: Microsoft 365 apps
In addition, users are unable to create notebooks in Microsoft
OneNote Class Notebook.
While we’re focused on remediation, users should follow this article
(https://support.microsoft.com/en-us/topic/provisioning-classes-at-scale-using-powershell-and-microsoft-graph-3428f18f-ff38-4c46-a696-3318e463cbec)
for provisioning through PowerShell and Microsoft Graph.
↑Return_to_index
Some users may see the time indicator on their calendars isn’t reflecting accurately or updating
Start Time: 2025-08-04 09:00(JST)
Last Update: 2025-08-26 07:37(JST)
Next Update By: 2025-08-28 08:00(JST)
Status: Service Degradation
Affected Service: Exchange Online
Impact is specific to users’ calendars on the new Outlook desktop
experience and Outlook on the web.
Affected users can restart the impacted Outlook client to have the time
indicator sync and reflect accurately.
↑Return_to_index
Some users may be unable to send or receive email from the Outlook mobile app on their devices
Start Time: 2025-08-14 04:32(JST)
Last Update: 2025-08-22 07:44(JST)
Next Update By: 2025-08-22 09:30(JST)
Status: Service Degradation
Affected Service: Exchange Online
Affected users would be utilizing Hybrid Modern Authentication (HMA).
↑Return_to_index
Some users may see a blank screen during meetings and calls from the Microsoft Teams desktop version
Start Time: 2025-08-11 04:30(JST)
Last Update: 2025-08-22 04:43(JST)
Next Update By: 2025-08-22 09:00(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
This issue is limited to users who are on devices that leverage
certain versions of Intel driver 32.0.101.69xx (including but not limited to,
32.0.101.6913, 32.0.101.6987, and 32.0.101.6989). Impacted users may see that
Microsoft Teams freezes for some time, and then it automatically recovers. For
those that need immediate remediation, our telemetry indicates that version
32.0.101.6790 of the Intel driver reproduces this issue the least.
Affected users can use the Microsoft Teams web app as a workaround until this
issue is addressed.
↑Return_to_index
Users may be unable to view the combined chat and channel view in the User Interface (UI)
Start Time: 2025-08-18 04:00(JST)
Last Update: 2025-08-22 04:04(JST)
Next Update By: 2025-08-22 06:00(JST)
Status: Service Degradation
Affected Service: Microsoft Teams
The issue primarily affects the Microsoft Teams desktop client. Users
that have access to the Microsoft Teams web client can use this to bypass the
impact.
Additionally, users can temporarily work around the issue by clearing the cache
in the desktop client.
Some users have reported that as a result of this impact, they can no longer
access Teams channels due to the icon not being present in the left panel.
↑Return_to_index
Investigating user reports of Microsoft Copilot issues
Last Update: 2025-08-28 06:57(JST)
Status: False Positive
Affected Service: Microsoft Copilot (Microsoft 365)
↑Return_to_index
Some users may be unexpectedly disconnected when accessing multiple Microsoft 365 services
Start Time: 2025-08-27 10:30(JST)
Last Update: 2025-08-28 01:31(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Affected Microsoft 365 services included but may not have been
limited to the following:
– Microsoft Teams
– Outlook
↑Return_to_index
Users are experiencing intermittent failures with the Office 365 Outlook connector actions
Last Update: 2025-08-27 10:01(JST)
Status: False Positive
Affected Service: Power Platform
↑Return_to_index
Some on-premises users may be unable to send or receive Exchange Online email messages on iOS and Android mobile devices
Last Update: 2025-08-26 12:53(JST)
Status: False Positive
Affected Service: Exchange Online
↑Return_to_index
Some users were experiencing delays and failures with flow operations and management
Start Time: 2025-08-25 09:23(JST)
Last Update: 2025-08-25 05:29(JST)
Status: Service Restored
Affected Service: Microsoft Power Automate in Microsoft 365
Both the Microsoft Power Apps and Power Automate services were
affected.
The following scenarios were affected by this event:
– Cloud flow management failures
– Desktop flow management failures
– Flow run delays and failures
– Delays when viewing the Flows page in Power Apps
↑Return_to_index
Delays and failures with flow operations and management in Japan region
Last Update: 2025-08-25 05:12(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
Users in Japan may be unable to access various Microsoft 365 services
Last Update: 2025-08-25 10:48(JST)
Status: False Positive
Affected Service: Microsoft 365 suite
↑Return_to_index
Users are intermittently unable to utilize Microsoft Power Platform connectors
Start Time: 2025-08-22 08:32(JST)
Last Update: 2025-08-22 01:31(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Users may have seen HTTP 500, 502, 504, and 520 error response codes.
The following services were affected by this issue:
Microsoft Power Apps
Microsoft Power Automate
↑Return_to_index
Power Platform – Connectors in the Japan region are intermittently failing
Last Update: 2025-08-22 01:14(JST)
Status: Service Restored
Affected Service: Power Platform
Failures may have returned HTTP 500, 502, 504 and 520 response code
messages.
The following services were affected by this event:
Power Apps
Power Automate
Copilot Studio
↑Return_to_index
onedriveforbusiness connector flows and apps failing
Last Update: 2025-08-22 12:59(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
office365 connector flows and apps failing
Last Update: 2025-08-22 12:44(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
googlecalendar connector flows and apps failing
Last Update: 2025-08-22 12:12(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
outlook connector flows and apps failing
Last Update: 2025-08-22 12:07(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
onenote connector flows and apps failing
Last Update: 2025-08-22 11:54(JST)
Status: Service Restored
Affected Service: Power Platform
↑Return_to_index
A small number of users’ Microsoft Teams app may intermittently crash during calls or meetings on some iPad devices
Start Time: 2024-05-13 07:00(JST)
Last Update: 2025-08-22 05:22(JST)
Status: Service Restored
Affected Service: Microsoft Teams
↑Return_to_index
Some users were unable to create or access public folders through the Outlook desktop client and Outlook on the web
Start Time: 2025-08-14 09:00(JST)
Last Update: 2025-08-21 04:28(JST)
Status: Service Restored
Affected Service: Exchange Online
Some users were also reporting failures when attempting to delete
public folder subfolders and are experiencing public folder permission delays.
↑Return_to_index
Users may be unable to open folders or add documents using the Document Library web part in SharePoint Online
Start Time: 2025-08-21 06:00(JST)
Last Update: 2025-08-21 04:08(JST)
Status: Investigating
Affected Service: SharePoint Online
↑Return_to_index
Users may be unable to create datasets with Dataflow connectors in the August 2025 version of Power BI Desktop
Start Time: 2025-08-11 09:00(JST)
Last Update: 2025-08-21 07:13(JST)
Status: Service Restored
Affected Service: Power BI
This issue was affecting a specific scenario for users that were
using the August 2025 Power BI Desktop to create datasets with Dataflow
connectors that were connecting to Gen1 Dataflows with the Enhanced compute
engine. This operation would fail if the user was using DirectQuery when
creating this dataset.
While we’re focused on remediation, users may have been able to use the July
2025 or previous version of the Power BI Desktop to avoid the impact.
↑Return_to_index
Some users may be unable to access Office.com
Start Time: 2025-08-20 10:12(JST)
Last Update: 2025-08-21 04:11(JST)
Status: Service Restored
Affected Service: Microsoft 365 suite
Additionally, users may have been unable to access
m365.cloud.microsoft, which may have impacted Microsoft Copilot access
(https://m365.cloud.microsoft/chat). Users were still able to access Copilot
through alternate methods, such as:
– Microsoft Copilot for Microsoft 365 app
– Microsoft 365 apps (including Microsoft Teams and Office Apps)
