List of Active and Resolved Service Status by Microsoft for December 2025

During December 2025, Microsoft reported several service-related incidents. This update outlines the active issues, recently resolved cases, and a historical summary of past incidents and advisories. Staying informed on these updates allows organizations to better manage, monitor, and optimize their Microsoft service environments.

If the issue persists, please look up the resolution by searching with the relevant Incident ID and title.

IsResolved	Id	StartDateTime	Service	Problem Description
TRUE	TM1216503	12/31/2025 1:00	Microsoft Teams	Some users may experience degraded video and screensharing quality in Microsoft Teams
TRUE	MO1213801	12/29/2025 20:00	Microsoft 365 suite	Users may have been unable to access shared Microsoft To Do lists
TRUE	EX1213757	12/23/2025 0:00	Exchange Online	Users may see an English user interface for Outlook on the web on mobile when configured for a non-English language
TRUE	IS1202804	12/22/2025 8:05	Microsoft Entra	Users may intermittently be unable to activate Microsoft Entra ID roles in Privileged Identity Management (PIM)
TRUE	TM1212913	12/22/2025 6:14	Microsoft Teams	Users may see higher battery and CPU usage in Microsoft Teams calls when participants screenshare or share video
TRUE	TM1202521	12/19/2025 22:53	Microsoft Teams	Users may have seen a message "Classic Teams is no longer available" when opening Microsoft Teams in web applications
TRUE	TM1200517	12/19/2025 19:03	Microsoft Teams	Users are seeing Microsoft Teams messaging delays and problems with other service functions
TRUE	TM1199560	12/18/2025 11:43	Microsoft Teams	Admins may be unable to view the health status of Session Border Controllers (SBCs) in the Microsoft Teams admin center
TRUE	MO1198797	12/18/2025 0:17	Microsoft 365 suite	Users in the Asia Pacific region may be experiencing access and sign?in issues with Microsoft 365 and Microsoft Copilot
TRUE	TM1199346	12/17/2025 15:34	Microsoft Teams	Users may be unable to answer PSTN calls from call queues using any Microsoft Teams client
FALSE	TM1198582	12/17/2025 14:09	Microsoft Teams	Some guest users may be unable to unmute their mics in recurring Microsoft Teams meetings when recording is enabled
TRUE	DZ1220491	12/17/2025 0:00	Microsoft Defender XDR	Admins may have seen automated investigation and response (AIR) remediation actions affecting more email than intended
TRUE	TM1199570	12/15/2025 20:00	Microsoft Teams	Users may be intermittently unable to place calls using the dial pad from the Microsoft Teams desktop and web clients
TRUE	CP1215237	12/15/2025 18:35	Microsoft Copilot (Microsoft 365)	Users may be unable to use the AI features in the Create module of Microsoft Copilot (Microsoft 365)
TRUE	TM1197326	12/14/2025 4:00	Microsoft Teams	Some users may encounter intermittent failures when attempting to create shared and private channels in Microsoft Teams
TRUE	DZ1193885	12/10/2025 11:40	Microsoft Defender XDR	Some users may be unable to use the portal and public API in Microsoft Defender for Endpoint
TRUE	MO1193724	12/10/2025 2:48	Microsoft 365 suite	Users in Australia may experience issues accessing Microsoft services including Microsoft Teams and Microsoft 365
TRUE	TM1194397	12/10/2025 0:00	Microsoft Teams	Some admins may be unable change settings in Microsoft Teams Rooms devices via the Pro Portal
TRUE	TM1212728	12/10/2025 0:00	Microsoft Teams	Users may have been unable to search new users in Microsoft Teams by their display name
TRUE	OO1202986	12/10/2025 0:00	Microsoft 365 for the web	Some users may have been intermittently unable to "Create a Copy" of files in Microsoft 365 apps for the web
TRUE	PB1193603	12/8/2025 21:50	Power BI	Users may be unable to use Git integrations utilizing APIs to perform multiple actions in Microsoft Fabric
TRUE	SP1216181	12/8/2025 12:00	SharePoint Online	Users may not receive email notifications generated from the SharePoint Online Rules
TRUE	MO1193013	12/7/2025 23:11	Microsoft 365 suite	Users in Australia may experience issues accessing Microsoft services including Microsoft Teams and Microsoft 365
TRUE	PB1192344	12/5/2025 5:40	Power BI	Users may have been unable to access the Microsoft Power BI and Microsoft Fabric services
TRUE	TM1192230	12/4/2025 23:16	Microsoft Teams	Admins may be unable to perform enterprise voice phone number management functions in the Microsoft Teams admin center
TRUE	DZ1193516	12/4/2025 10:00	Microsoft Defender XDR	Some admins may encounter errors when accessing Microsoft Defender for Endpoint features
TRUE	SP1194366	12/3/2025 13:47	SharePoint Online	Some users may be unable to execute the SharePoint 2013 'Assign a Task' action or 'Send an Email' workflows
TRUE	SP1196502	12/3/2025 13:47	SharePoint Online	Some users may be unable to retrieve email addresses using the SharePoint Online Client Side Object Model (CSOM) API
TRUE	OP1192004	12/2/2025 17:21	Microsoft 365 apps	Users may not be able to download Microsoft 365 desktop apps from the Microsoft 365 homepage
TRUE	MO1193675	12/2/2025 15:54	Microsoft 365 suite	Admins may be unable to make changes to their organization information in the Microsoft 365 admin center
TRUE	SP1191627	12/2/2025 14:55	SharePoint Online	Some users may be unable to open PDFs within SharePoint Online
TRUE	DZ1191468	12/2/2025 8:30	Microsoft Defender XDR	Multiple issues with the Microsoft Defender portal
TRUE	MV1191335	12/1/2025 22:30	Microsoft Viva	Users may be unable to upload files in Microsoft Viva Engage that are equal to or lesser than 4MBs
TRUE	CP1191225	12/1/2025 15:10	Microsoft Copilot (Microsoft 365)	Some users intermittently may not receive responses for their prompts in Microsoft Copilot (Microsoft 365)
TRUE	TM1191192	12/1/2025 13:05	Microsoft Teams	Some users in Brazil may have been unable to join Microsoft Teams meetings
TRUE	DZ1191490	12/1/2025 8:00	Microsoft Defender XDR	Some admins may notice delays of up to 10 hours for sign-in events in the Microsoft Defender XDR portal