{"id":18256,"date":"2026-09-02T04:01:34","date_gmt":"2026-09-01T19:01:34","guid":{"rendered":"https:\/\/m365jp.net\/?p=18256"},"modified":"2026-09-02T04:05:29","modified_gmt":"2026-09-01T19:05:29","slug":"servicedegradation-mo1465074-microsoft-365-suite-users-may-experience-issues-when-utilizing-multiple-microsoft-365-services-12","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-09-02-servicedegradation-mo1465074-microsoft-365-suite-users-may-experience-issues-when-utilizing-multiple-microsoft-365-services-12","title":{"rendered":"[serviceDegradation] MO1465074 | Microsoft 365 suite | Users may experience issues when utilizing multiple Microsoft 365 services"},"content":{"rendered":"
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MO1465074 | Microsoft 365 suite | Users may experience issues when utilizing multiple Microsoft 365 services<\/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>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may experience issues when utilizing multiple Microsoft 365 services.<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/01\/2026 18:35:02<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/31\/2026 15:08:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may experience issues when utilizing multiple Microsoft 365 services <\/p>\n

User impact: Users may experience issues when utilizing multiple Microsoft 365 services. <\/p>\n

More info: Impact includes, but may not be limited to, the below services and scenarios. We will update this list as our understanding of the issue progresses.<\/p>\n

Microsoft 365 Copilot:
– Users’ Copilot prompts that require Microsoft 365 grounding, such as email content, may fail.
– Users may experience failures for scenarios that rely on access to Exchange Online data.<\/p>\n

OneDrive for Business and SharePoint Online:
– Users may be unable to load or refresh portions of OneDrive and SharePoint, including account and storage information, search results, Favorites, Followed and Shared With Me content, recent files, lists, and news.
– Some users may also experience delayed or failed file opening, Office policy-label retrieval, OneDrive synchronization, mobile camera upload, and video playback.
– Users may see partial page failures, missing or stale content, repeated retries, and operation timeouts rather than a complete platform outage. <\/p>\n

Exchange Online:
– Service telemetry indicates recovery of core mail flow and search functionality.
– Users may be unable to connect to, or experience degraded functionality, such as failures when attempting to use the search function, within Exchange Online. All connection methods are affected.<\/p>\n

Outlook for iOS and Android:
– Delays or failures when sending or receiving email messages via Outlook for iOS and Android.<\/p>\n

Microsoft Teams:
– Users may experience issues with calendar functionality and search. Users\u2019 presence may be stale and not update automatically or through manual adjustment. User location adjustment may fail.
– Microsoft Teams Room (MTR) devices and desktop phones display as offline in the Teams admin center.<\/p>\n

Microsoft 365 Admin Center:
– Admins may experience issues authenticating into the admin center.
Universal Print:
– Users may be unable to create, upload, or retrieve print jobs.<\/p>\n

Microsoft Graph:
– Users may experience failures for scenarios that rely on access to Exchange Online data.<\/p>\n

Resolved <\/p>\n

Microsoft Purview:
– Users can now access the Microsoft Purview portal.
– Any policy hits, alerts, or processing activities delayed during the event are expected to appear over the next 24 to 48 hours as recovery validation continues.
– Additionally, in Microsoft Purview Communication Compliance, users may have experienced errors when loading Communication Compliance policies and Data Loss Prevention (DLP) policies, and policy creation or evaluation delays.<\/p>\n

Microsoft Defender XDR:
– Users may have experienced intermittent authorization failures across solutions in Defender. <\/p>\n

Current status: We are carefully implementing corrective actions while maintaining enhanced monitoring to ensure services remain stable as recovery progresses. <\/p>\n

Scope of impact: Users attempting to perform any of the outlined impact scenarios may be affected by this event. <\/p>\n

Start time: Monday, August 31, 2026, at 3:08 PM UTC <\/p>\n

Root cause: An issue within a core authentication configuration used by multiple Microsoft 365 services is resulting in impact.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u30e6\u30fc\u30b6\u30fc\u306f\u8907\u6570\u306eMicrosoft 365\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059 <\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u8907\u6570\u306eMicrosoft 365\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u8a73\u7d30\u60c5\u5831:\u5f71\u97ff\u306f\u4ee5\u4e0b\u306e\u30b5\u30fc\u30d3\u30b9\u3084\u30b7\u30ca\u30ea\u30aa\u306b\u9650\u5b9a\u3055\u308c\u308b\u304c\u3001\u3053\u308c\u306b\u9650\u5b9a\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u554f\u984c\u306e\u7406\u89e3\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u30ea\u30b9\u30c8\u3092\u66f4\u65b0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

Microsoft 365 Copilot:
– Microsoft 365\u306e\u30b0\u30e9\u30a6\u30f3\u30c7\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u306a\u30e6\u30fc\u30b6\u30fc\u306eCopilot\u30d7\u30ed\u30f3\u30d7\u30c8(\u30e1\u30fc\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u306a\u3069)\u306f\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002
– Exchange Online\u306e\u30c7\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4f9d\u5b58\u3059\u308b\u30b7\u30ca\u30ea\u30aa\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u5931\u6557\u3092\u7d4c\u9a13\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

OneDrive for Business\u3068SharePoint Online:
– \u30e6\u30fc\u30b6\u30fc\u306f\u30a2\u30ab\u30a6\u30f3\u30c8\u60c5\u5831\u3084\u30b9\u30c8\u30ec\u30fc\u30b8\u60c5\u5831\u3001\u691c\u7d22\u7d50\u679c\u3001\u304a\u6c17\u306b\u5165\u308a\u3001\u30d5\u30a9\u30ed\u30fc\u6e08\u307f\u30fb\u5171\u6709\u30b3\u30f3\u30c6\u30f3\u30c4\u3001\u6700\u8fd1\u306e\u30d5\u30a1\u30a4\u30eb\u3001\u30ea\u30b9\u30c8\u3001\u30cb\u30e5\u30fc\u30b9\u306a\u3069\u3001OneDrive\u3084SharePoint\u306e\u4e00\u90e8\u3092\u8aad\u307f\u8fbc\u307f\u3084\u66f4\u65b0\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002
– \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u958b\u5c01\u9045\u5ef6\u3084\u5931\u6557\u3001Office\u30dd\u30ea\u30b7\u30fc\u30e9\u30d9\u30eb\u306e\u53d6\u5f97\u3001OneDrive\u306e\u540c\u671f\u3001\u30e2\u30d0\u30a4\u30eb\u30ab\u30e1\u30e9\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3001\u52d5\u753b\u518d\u751f\u306e\u9045\u5ef6\u3084\u5931\u6557\u3092\u7d4c\u9a13\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002
– \u30e6\u30fc\u30b6\u30fc\u306f\u5b8c\u5168\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u505c\u6b62\u3067\u306f\u306a\u304f\u3001\u90e8\u5206\u7684\u306a\u30da\u30fc\u30b8\u306e\u5931\u6557\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u629c\u3051\u843d\u3061\u3084\u53e4\u3073\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3001\u7e70\u308a\u8fd4\u3057\u306e\u518d\u30c8\u30e9\u30a4\u3001\u904b\u7528\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u76ee\u306b\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u30a8\u30af\u30b9\u30c1\u30a7\u30f3\u30b8\u30aa\u30f3\u30e9\u30a4\u30f3:
– \u30b5\u30fc\u30d3\u30b9\u30c6\u30ec\u30e1\u30c8\u30ea\u306f\u30b3\u30a2\u30e1\u30fc\u30eb\u30d5\u30ed\u30fc\u304a\u3088\u3073\u691c\u7d22\u6a5f\u80fd\u306e\u56de\u5fa9\u3092\u793a\u3057\u307e\u3059\u3002
– \u30e6\u30fc\u30b6\u30fc\u304cExchange Online\u5185\u306e\u691c\u7d22\u6a5f\u80fd\u4f7f\u7528\u6642\u306b\u5931\u6557\u3059\u308b\u306a\u3069\u3001\u63a5\u7d9a\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u308a\u3001\u6a5f\u80fd\u306e\u52a3\u5316\u3092\u7d4c\u9a13\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u63a5\u7d9a\u65b9\u6cd5\u304c\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n

iOS\u304a\u3088\u3073Android\u5411\u3051Outlook:
– Outlook(iOS\u304a\u3088\u3073Android)\u3067\u306e\u30e1\u30fc\u30eb\u9001\u53d7\u4fe1\u306e\u9045\u5ef6\u3084\u5931\u6557\u3002<\/p>\n

Microsoft Teams:
– \u30ab\u30ec\u30f3\u30c0\u30fc\u6a5f\u80fd\u3084\u691c\u7d22\u306b\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30ec\u30bc\u30f3\u30b9\u304c\u53e4\u304f\u306a\u3063\u3066\u3044\u3066\u3001\u81ea\u52d5\u66f4\u65b0\u3084\u624b\u52d5\u8abf\u6574\u3067\u66f4\u65b0\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306e\u4f4d\u7f6e\u8abf\u6574\u304c\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002
– Microsoft Teams Room(MTR)\u30c7\u30d0\u30a4\u30b9\u304a\u3088\u3073\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u96fb\u8a71\u306f\u3001Teams\u7ba1\u7406\u30bb\u30f3\u30bf\u30fc\u3067\u30aa\u30d5\u30e9\u30a4\u30f3\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n

Microsoft 365\u7ba1\u7406\u30bb\u30f3\u30bf\u30fc:
– \u7ba1\u7406\u8005\u304c\u7ba1\u7406\u30bb\u30f3\u30bf\u30fc\u3078\u306e\u8a8d\u8a3c\u306b\u554f\u984c\u3092\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002
\u30e6\u30cb\u30d0\u30fc\u30b5\u30eb\u30fb\u30d7\u30ea\u30f3\u30c8:
– \u30e6\u30fc\u30b6\u30fc\u306f\u5370\u5237\u30b8\u30e7\u30d6\u306e\u4f5c\u6210\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3001\u53d6\u5f97\u304c\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Microsoft Graph:
– Exchange Online\u306e\u30c7\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4f9d\u5b58\u3059\u308b\u30b7\u30ca\u30ea\u30aa\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u5931\u6557\u3092\u7d4c\u9a13\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u89e3\u6c7a\u6e08\u307f<\/p>\n

Microsoft Purview:
– \u30e6\u30fc\u30b6\u30fc\u306f\u73fe\u5728\u3001Microsoft Purview\u30dd\u30fc\u30bf\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002
– \u30a4\u30d9\u30f3\u30c8\u4e2d\u306b\u9045\u5ef6\u3057\u305f\u30dd\u30ea\u30b7\u30fc\u30d2\u30c3\u30c8\u3001\u30a2\u30e9\u30fc\u30c8\u3001\u51e6\u7406\u6d3b\u52d5\u306f\u3001\u56de\u5fa9\u691c\u8a3c\u304c\u7d9a\u304f24\u301c48\u6642\u9593\u4ee5\u5185\u306b\u73fe\u308c\u308b\u898b\u8fbc\u307f\u3067\u3059\u3002
– \u3055\u3089\u306b\u3001Microsoft Purview Communication Compliance\u3067\u306f\u3001\u901a\u4fe1\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u30dd\u30ea\u30b7\u30fc\u3084\u30c7\u30fc\u30bf\u640d\u5931\u9632\u6b62(DLP)\u30dd\u30ea\u30b7\u30fc\u306e\u8aad\u307f\u8fbc\u307f\u6642\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3001\u30dd\u30ea\u30b7\u30fc\u4f5c\u6210\u3084\u8a55\u4fa1\u306e\u9045\u5ef6\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Microsoft Defender XDR:
– \u30e6\u30fc\u30b6\u30fc\u306fDefender\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u65ad\u7d9a\u7684\u306a\u8a8d\u53ef\u5931\u6557\u3092\u7d4c\u9a13\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u73fe\u72b6:\u56de\u5fa9\u304c\u9032\u3080\u4e2d\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u5b89\u5b9a\u3092\u78ba\u5b9f\u306b\u7dad\u6301\u3057\u3064\u3064\u3001\u662f\u6b63\u63aa\u7f6e\u3092\u614e\u91cd\u306b\u5b9f\u65bd\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u4e0a\u8a18\u306e\u5f71\u97ff\u30b7\u30ca\u30ea\u30aa\u306e\u3044\u305a\u308c\u304b\u3092\u5b9f\u884c\u3057\u3088\u3046\u3068\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u3053\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e748\u670831\u65e5(\u6708)\u5348\u5f8c3\u664208\u5206(UTC) <\/p>\n

\u6839\u672c\u539f\u56e0:\u8907\u6570\u306eMicrosoft 365\u30b5\u30fc\u30d3\u30b9\u3067\u4f7f\u7528\u3055\u308c\u308b\u30b3\u30a2\u8a8d\u8a3c\u8a2d\u5b9a\u306e\u554f\u984c\u304c\u5f71\u97ff\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

MO1465074 | Microsoft 365 suite | Users may experience issues when utilizing multiple Microsoft 365 services S […]<\/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-18256","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18256","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=18256"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18256\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}