{"id":16645,"date":"2026-06-02T23:01:11","date_gmt":"2026-06-02T14:01:11","guid":{"rendered":"https:\/\/m365jp.net\/?p=16645"},"modified":"2026-06-02T23:04:03","modified_gmt":"2026-06-02T14:04:03","slug":"servicedegradation-mo1331639-microsoft-365-suite-issue-with-webhook-based-task-notifications-in-microsoft-to-do","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-02-servicedegradation-mo1331639-microsoft-365-suite-issue-with-webhook-based-task-notifications-in-microsoft-to-do","title":{"rendered":"[serviceDegradation] MO1331639 | Microsoft 365 suite | Issue with webhook-based task notifications in Microsoft To Do"},"content":{"rendered":"
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MO1331639 | Microsoft 365 suite | Issue with webhook-based task notifications in Microsoft To Do<\/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 are unable to receive webhook-based task notifications in Microsoft To Do.<\/td>\n<\/tr>\n
Last Updated<\/th>\n06\/02\/2026 13:55:50<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/02\/2026 13:55:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Issue with webhook-based task notifications in Microsoft To Do<\/p>\n

User impact: Users are unable to receive webhook-based task notifications in Microsoft To Do.<\/p>\n

More info: This issue may affect any webhook-based task notification in Microsoft To Do:<\/p>\n

– Any webhook notification delivery to your organization’s registered notificationUrl endpoints that was setup using MSGraph: learn.microsoft.com\/en-us\/graph\/change-notifications-with-resource-data?tabs=csharp<\/a>
– Any automation or workflow that depends on receiving real-time task change callbacks<\/p>\n

If your organization relies on webhook notifications for task automation:
Consider temporary polling via GET requests to \/me\/todo\/lists\/{listId}\/tasks as a workaround: learn.microsoft.com\/en-us\/graph\/api\/resources\/todo-overview?view=graph-rest-1.0<\/a><\/p>\n

Current status: We’ve identified a configuration issue affecting webhook-based task notifications in Microsoft To Do. We’re developing a long-term fix to restore functionality, and we’ll provide additional updates as this progresses.<\/p>\n

Scope of impact: Your organization is impacted by this event, and this issue may affect any user within your organization.<\/p>\n

Next update by: Wednesday, June 10, 2026, at 12:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:Microsoft To Do\u306b\u304a\u3051\u308b\u30a6\u30a7\u30d6\u30d5\u30c3\u30af\u30d9\u30fc\u30b9\u306e\u30bf\u30b9\u30af\u901a\u77e5\u306e\u554f\u984c<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:Microsoft To Do\u3067\u306fWebhook\u30d9\u30fc\u30b9\u306e\u30bf\u30b9\u30af\u901a\u77e5\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831:\u3053\u306e\u554f\u984c\u306fMicrosoft To Do\u306e\u30a6\u30a7\u30d6\u30d5\u30c3\u30af\u30d9\u30fc\u30b9\u306e\u30bf\u30b9\u30af\u901a\u77e5\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059:<\/p>\n

– MSGraph\u3092\u7528\u3044\u3066\u7d44\u7e54\u306e\u767b\u9332\u6e08\u307f\u901a\u77e5URL\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u30a6\u30a7\u30d6\u30d5\u30c3\u30af\u901a\u77e5\u3092\u5c4a\u3051\u305f\u3082\u306e:https:\/\/learn.microsoft.com\/en-us\/graph\/change-notifications-with-resource-data?tabs=csharp
– \u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30bf\u30b9\u30af\u5909\u66f4\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u53d7\u4fe1\u306b\u4f9d\u5b58\u3059\u308b\u81ea\u52d5\u5316\u3084\u30ef\u30fc\u30af\u30d5\u30ed\u30fc<\/p>\n

\u3082\u3057\u3042\u306a\u305f\u306e\u7d44\u7e54\u304c\u30bf\u30b9\u30af\u81ea\u52d5\u5316\u306b\u30a6\u30a7\u30d6\u30d5\u30c3\u30af\u901a\u77e5\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u5834\u5408:
\u56de\u907f\u7b56\u3068\u3057\u3066\u3001\/me\/todo\/lists\/lists\/{listId}\/tasks\u3078\u306eGET\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u4e00\u6642\u7684\u306a\u30dd\u30fc\u30ea\u30f3\u30b0\u3092\u691c\u8a0e\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044:https:\/\/learn.microsoft.com\/en-us\/graph\/api\/resources\/todo-overview?view=graph-rest-1.0<\/p>\n

\u73fe\u72b6:Microsoft To Do\u306eWebhook\u30d9\u30fc\u30b9\u306e\u30bf\u30b9\u30af\u901a\u77e5\u306b\u5f71\u97ff\u3059\u308b\u8a2d\u5b9a\u306e\u554f\u984c\u3092\u7279\u5b9a\u3057\u307e\u3057\u305f\u3002\u6a5f\u80fd\u3092\u56de\u5fa9\u3059\u308b\u305f\u3081\u306e\u9577\u671f\u7684\u306a\u4fee\u6b63\u6848\u3092\u958b\u767a\u3057\u3066\u304a\u308a\u3001\u9032\u5c55\u306b\u5fdc\u3058\u3066\u8ffd\u52a0\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u30a4\u30d9\u30f3\u30c8\u306f\u8cb4\u7d44\u7e54\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u554f\u984c\u306f\u7d44\u7e54\u5185\u306e\u3069\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u3082\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e746\u670810\u65e5\u6c34\u66dc\u65e5 12:00 PM UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

MO1331639 | Microsoft 365 suite | Issue with webhook-based task notifications in Microsoft To Do Status servic […]<\/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-16645","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16645","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=16645"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16645\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}