{"id":17526,"date":"2026-07-28T16:02:06","date_gmt":"2026-07-28T07:02:06","guid":{"rendered":"https:\/\/m365jp.net\/?p=17526"},"modified":"2026-07-28T16:03:49","modified_gmt":"2026-07-28T07:03:49","slug":"servicedegradation-cw1441063-microsoft-365-copilot-chat-some-users-microsoft-365-copilot-chats-created-in-excel-powerpoint-and-word-may-display-as-an-untitled-chat-3","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-07-28-servicedegradation-cw1441063-microsoft-365-copilot-chat-some-users-microsoft-365-copilot-chats-created-in-excel-powerpoint-and-word-may-display-as-an-untitled-chat-3","title":{"rendered":"[serviceDegradation] CW1441063 | Microsoft 365 Copilot Chat | Some users\u2019 Microsoft 365 Copilot chats created in Excel, PowerPoint, and Word may display as an untitled chat"},"content":{"rendered":"
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CW1441063 | Microsoft 365 Copilot Chat | Some users\u2019 Microsoft 365 Copilot chats created in Excel, PowerPoint, and Word may display as an untitled chat<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers\u2019 Copilot chats created in Excel, PowerPoint, and Word may display as an untitled chat.<\/td>\n<\/tr>\n
Last Updated<\/th>\n07\/28\/2026 06:17:05<\/td>\n<\/tr>\n
Start Time<\/th>\n07\/28\/2026 02:29:48<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users\u2019 Microsoft 365 Copilot chats created in Excel, PowerPoint, and Word may display as an untitled chat <\/p>\n

User impact: Users\u2019 Copilot chats created in Excel, PowerPoint, and Word may display as an untitled chat. <\/p>\n

More info: Aside from being untitled, the impacted chats operate as expected. <\/p>\n

Current status: We suspect that a recently enabled conversation update process is overwriting some chat titles with an empty value. We\u2019re comparing successful and affected requests to determine what triggers the behavior and identify the appropriate fix. <\/p>\n

Scope of impact: Some users leveraging Copilot chat through Microsoft Excel, Microsoft PowerPoint, and Microsoft Word may be impacted. This information may be updated as our investigation continues. <\/p>\n

Next update by: Tuesday, July 28, 2026, at 12:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306eMicrosoft 365 Copilot\u30c1\u30e3\u30c3\u30c8\u306f\u3001Excel\u3001PowerPoint\u3001Word\u3067\u4f5c\u6210\u3055\u308c\u3001\u30bf\u30a4\u30c8\u30eb\u306e\u306a\u3044\u30c1\u30e3\u30c3\u30c8\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059 <\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:Excel\u3001PowerPoint\u3001Word\u3067\u4f5c\u6210\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u306eCopilot\u30c1\u30e3\u30c3\u30c8\u306f\u3001\u30bf\u30a4\u30c8\u30eb\u306e\u306a\u3044\u30c1\u30e3\u30c3\u30c8\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u8a73\u7d30\u60c5\u5831:\u30bf\u30a4\u30c8\u30eb\u304c\u660e\u304b\u3055\u308c\u3066\u3044\u306a\u3044\u4ee5\u5916\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30c1\u30e3\u30c3\u30c8\u306f\u4e88\u60f3\u901a\u308a\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002 <\/p>\n

\u73fe\u72b6:\u6700\u8fd1\u6709\u52b9\u5316\u3055\u308c\u305f\u4f1a\u8a71\u66f4\u65b0\u30d7\u30ed\u30bb\u30b9\u304c\u3001\u7a7a\u306e\u6570\u5024\u3067\u4e00\u90e8\u306e\u30c1\u30e3\u30c3\u30c8\u30bf\u30a4\u30c8\u30eb\u3092\u4e0a\u66f8\u304d\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6210\u529f\u3057\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6bd4\u8f03\u3057\u3001\u4f55\u304c\u3053\u306e\u52d5\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u7279\u5b9a\u3057\u3001\u9069\u5207\u306a\u4fee\u6b63\u3092\u7279\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:Microsoft Excel\u3001Microsoft PowerPoint\u3001Microsoft Word\u3092\u901a\u3058\u3066Copilot\u30c1\u30e3\u30c3\u30c8\u3092\u5229\u7528\u3059\u308b\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u60c5\u5831\u306f\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e747\u670828\u65e5\u706b\u66dc\u65e5 12:00 PM UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

CW1441063 | Microsoft 365 Copilot Chat | Some users\u2019 Microsoft 365 Copilot chats created in Excel, PowerPoint, […]<\/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-17526","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17526","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=17526"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17526\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=17526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=17526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=17526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}