{"id":16817,"date":"2026-06-12T08:00:53","date_gmt":"2026-06-11T23:00:53","guid":{"rendered":"https:\/\/m365jp.net\/?p=16817"},"modified":"2026-06-12T08:03:34","modified_gmt":"2026-06-11T23:03:34","slug":"servicerestored-cw1386443-microsoft-365-copilot-chat-some-users-may-experience-degradation-with-microsoft-365-copilot-chat-responses-after-uploading-a-file","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-12-servicerestored-cw1386443-microsoft-365-copilot-chat-some-users-may-experience-degradation-with-microsoft-365-copilot-chat-responses-after-uploading-a-file","title":{"rendered":"[serviceRestored] CW1386443 | Microsoft 365 Copilot Chat | Some users may experience degradation with Microsoft 365 Copilot Chat responses after uploading a file"},"content":{"rendered":"
\n
\n
\n\n\n\n
CW1386443 | Microsoft 365 Copilot Chat | Some users may experience degradation with Microsoft 365 Copilot Chat responses after uploading a file<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have experienced degradation with Copilot Chat responses after uploading a file.<\/td>\n<\/tr>\n
Last Updated<\/th>\n06\/11\/2026 22:18:20<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/09\/2026 06:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n06\/11\/2026 18:10:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may experience degradation with Microsoft 365 Copilot Chat responses after uploading a file <\/p>\n

User impact: Users may have experienced degradation with Copilot Chat responses after uploading a file. <\/p>\n

More info: Affected users may have been returned an error message stating, “Oops! Something happened. Can you try again?”<\/p>\n

Users reported low-quality or inaccurate responses when Copilot Chat was prompted to respond on content within uploaded files.<\/p>\n

Additionally, users who attempted to send a message with file grounding may have received the following response, “I tried to open your file {file name}, but I\u2019m currently unable to retrieve its contents due to an access\/activity limit on the file.” <\/p>\n

Final status: We’ve completed the scale-out of our configuration change to prevent retries from adding more load during OneDrive or SharePoint Online file uploads. After a period of monitoring for file upload traffic across affected regions, we’ve confirmed that our actions successfully remediated impact. <\/p>\n

Scope of impact: Some users may have experienced degradation with Copilot Chat responses after uploading a file. <\/p>\n

Start time: Tuesday, June 9, 2026, at 6:00 AM UTC <\/p>\n

End time: Thursday, June 11, 2026, at 6:10 PM UTC <\/p>\n

Root cause: Normal growth in Microsoft 365 Copilot Chat usage exceeded the available resources needed to process OneDrive and SharePoint Online file upload requests, causing some requests to process slower or fail. <\/p>\n

Next steps:
– We’re continuing to monitor previously affected traffic to confirm what additional performance optimizations we can implement to further improve the resiliency of our service to prevent similar impact scenarios from occurring in the future.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u5f8c\u306eMicrosoft 365 Copilot\u30c1\u30e3\u30c3\u30c8\u306e\u5fdc\u7b54\u306b\u52a3\u5316\u3092\u611f\u3058\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059 <\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u5f8c\u306eCopilot Chat\u306e\u5fdc\u7b54\u304c\u52a3\u5316\u3057\u305f\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u8a73\u7d30\u60c5\u5831:\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u300c\u304a\u3063\u3068!\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8fd4\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4f55\u304b\u304c\u8d77\u304d\u305f\u3002\u3082\u3046\u4e00\u5ea6\u8a66\u3057\u3066\u307f\u3066\u304f\u308c\u306a\u3044\u304b?\u300d<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u5bfe\u3057\u3066Copilot Chat\u306b\u5fdc\u7b54\u3092\u6c42\u3081\u308b\u3088\u3046\u4fc3\u3055\u308c\u305f\u969b\u3001\u8cea\u304c\u4f4e\u3044\u307e\u305f\u306f\u4e0d\u6b63\u78ba\u306a\u56de\u7b54\u3092\u5831\u544a\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u3055\u3089\u306b\u3001\u30d5\u30a1\u30a4\u30eb\u63a5\u5730\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308d\u3046\u3068\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u300c\u3042\u306a\u305f\u306e\u30d5\u30a1\u30a4\u30eb{\u30d5\u30a1\u30a4\u30eb\u540d}\u3092\u958b\u3053\u3046\u3068\u3057\u307e\u3057\u305f\u304c\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30af\u30bb\u30b9\/\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u5236\u9650\u306e\u305f\u3081\u3001\u73fe\u5728\u305d\u306e\u5185\u5bb9\u3092\u5fa9\u5143\u3067\u304d\u307e\u305b\u3093\u300d\u3068\u3044\u3046\u8fd4\u7b54\u3092\u53d7\u3051\u53d6\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u6700\u7d42\u72b6\u6cc1:OneDrive\u3084SharePoint Online\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u6642\u306b\u518d\u8a66\u884c\u304c\u8ca0\u8377\u3092\u5897\u3084\u3059\u306e\u3092\u9632\u3050\u305f\u3081\u3001\u8a2d\u5b9a\u5909\u66f4\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u3092\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002\u5f71\u97ff\u3092\u53d7\u3051\u308b\u5730\u57df\u3067\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u76e3\u8996\u671f\u9593\u3092\u7d4c\u3066\u3001\u79c1\u305f\u3061\u306e\u5bfe\u5fdc\u304c\u5f71\u97ff\u3092\u6b63\u5e38\u306b\u6539\u5584\u3057\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u5f8c\u306bCopilot Chat\u306e\u5fdc\u7b54\u304c\u52a3\u5316\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u523b:2026\u5e746\u67089\u65e5\u706b\u66dc\u65e5 \u5348\u524d6\u6642 UTC <\/p>\n

\u7d42\u4e86\u6642\u523b:2026\u5e746\u670811\u65e5\u6728\u66dc\u65e5 18:10 UTC <\/p>\n

\u6839\u672c\u539f\u56e0:Microsoft 365 Copilot Chat\u306e\u5229\u7528\u7387\u304c\u901a\u5e38\u306e\u5897\u52a0\u3067\u3001OneDrive\u3084SharePoint Online\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u3092\u4e0a\u56de\u308a\u3001\u4e00\u90e8\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u51e6\u7406\u304c\u9045\u304f\u306a\u3063\u305f\u308a\u5931\u6557\u3057\u305f\u308a\u3057\u307e\u3057\u305f\u3002 <\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
– \u4eca\u5f8c\u3082\u540c\u69d8\u306e\u5f71\u97ff\u304c\u53ca\u3076\u4e8b\u614b\u3092\u9632\u3050\u305f\u3081\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u3092\u3055\u3089\u306b\u5f37\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u3069\u306e\u3088\u3046\u306a\u8ffd\u52a0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u304c\u53ef\u80fd\u304b\u3092\u5f15\u304d\u7d9a\u304d\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

CW1386443 | Microsoft 365 Copilot Chat | Some users may experience degradation with Microsoft 365 Copilot Chat […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-16817","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=16817"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16817\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}