| CW1466621 |
Users' queries to Microsoft 365 Copilot Chat may return no response, and users receive an error
Microsoft 365 Copilot Chatincident
|
Active |
03 Sep 2026 |
03 Sep 2026 |
| CW1461372 |
Some users may be unable to receive responses when using Microsoft 365 Copilot Chat
Microsoft 365 Copilot Chatincident
|
Resolved |
24 Aug 2026 |
03 Sep 2026 |
| CW1454295 |
Some users may be intermittently unable to access Microsoft 365 Copilot Chat in Outlook on the web
Microsoft 365 Copilot Chatincident
|
Resolved |
13 Aug 2026 |
15 Aug 2026 |
| CW1447067 |
Users may be unable to access Microsoft Copilot Chat in the browser and may encounter a 400 Request Header error
Microsoft 365 Copilot Chatincident
|
Resolved |
31 Jul 2026 |
05 Aug 2026 |
| CW1442650 |
Some users may receive an error when they initiate Microsoft 365 Copilot Chat requests
Microsoft 365 Copilot Chatadvisory
|
Resolved |
29 Jul 2026 |
30 Jul 2026 |
| CW1436954 |
Some users may see an error when sending messages from BizChat and the BizChat side pane in Microsoft 365 apps.
Microsoft 365 Copilot Chatadvisory
|
Resolved |
23 Jul 2026 |
23 Jul 2026 |
| CW1420563 |
Users may be unable to view or select specific GPT-based models in Microsoft 365 Copilot chat
Microsoft 365 Copilot Chatadvisory
|
Resolved |
08 Jul 2026 |
08 Jul 2026 |
| CW1409007 |
Users had access to scheduled prompts in Microsoft 365 Copilot Chat when they shouldn't have
Microsoft 365 Copilot Chatadvisory
|
Resolved |
29 Jun 2026 |
29 Jun 2026 |
| CW1391746 |
Users are unable to submit a prompt in Microsoft 365 Copilot Chat and receive an error message
Microsoft 365 Copilot Chatincident
|
Resolved |
12 Jun 2026 |
22 Jun 2026 |
| CW1390285 |
Admins may not see accurate usage data for Microsoft 365 Copilot Chat in the Microsoft 365 admin center
Microsoft 365 Copilot Chatadvisory
|
Resolved |
02 Jun 2026 |
18 Jun 2026 |
| CW1395054 |
Some users may see multiple impact scenarios for Microsoft Copilot Researcher
Microsoft 365 Copilot Chatadvisory
|
Resolved |
16 Jun 2026 |
18 Jun 2026 |
| CW1386443 |
Some users may experience degradation with Microsoft 365 Copilot Chat responses after uploading a file
Microsoft 365 Copilot Chatadvisory
|
Resolved |
09 Jun 2026 |
11 Jun 2026 |
| CW1352001 |
Users may have received no response when prompting Microsoft 365 Copilot Chat using the Claude Opus model
Microsoft 365 Copilot Chatincident
|
Resolved |
01 Jun 2026 |
05 Jun 2026 |
| CW1310341 |
Some users may be unable to access Microsoft 365 Copilot Chat via any connection method
Microsoft 365 Copilot Chatincident
|
Resolved |
14 May 2026 |
21 May 2026 |
| CW1314072 |
Users may be unable to access Copilot Voice in Microsoft 365 Copilot Chat or conduct voice conversations
Microsoft 365 Copilot Chatadvisory
|
Resolved |
17 May 2026 |
18 May 2026 |
| CW1300750 |
Some users may be unable to access links to other apps provided by Microsoft 365 Copilot Chat prompts
Microsoft 365 Copilot Chatincident
|
Resolved |
29 Apr 2026 |
13 May 2026 |
| CW1304234 |
Admins may see Microsoft 365 Copilot Chat reports delayed by up to one day within the Microsoft 365 admin center
Microsoft 365 Copilot Chatadvisory
|
Resolved |
08 May 2026 |
09 May 2026 |
| CW1293760 |
Users are intermittently unable to access Microsoft 365 Copilot Chat using the Microsoft Edge browser
Microsoft 365 Copilot Chatincident
|
Resolved |
23 Apr 2026 |
06 May 2026 |
| CW1218323 |
Users aren't shown the "Edit in Outlook" button after prompting Copilot Chat to draft an email message
Microsoft 365 Copilot Chatadvisory
|
Resolved |
10 Dec 2025 |
14 Apr 2026 |
| CW1268725 |
Users' queries may fail with an error message in Microsoft 365 Copilot Chat
Microsoft 365 Copilot Chatincident
|
Resolved |
02 Apr 2026 |
03 Apr 2026 |
| CW1255304 |
Users may be unable to save their personalization settings within Microsoft Copilot Chat and encounter an error
Microsoft 365 Copilot Chatincident
|
Resolved |
16 Mar 2026 |
30 Mar 2026 |
| CW1245654 |
Admins may not be able to search for Microsoft 365 Copilot Chat messages using Microsoft Purview eDiscovery searches
Microsoft 365 Copilot Chatadvisory
|
Resolved |
13 Feb 2026 |
27 Mar 2026 |
| CW1247849 |
Some users see additional Microsoft 365 Copilot Chat agents available to use
Microsoft 365 Copilot Chatadvisory
|
Resolved |
09 Mar 2026 |
10 Mar 2026 |
