{"id":13887,"date":"2025-11-20T05:01:09","date_gmt":"2025-11-19T20:01:09","guid":{"rendered":"https:\/\/m365jp.net\/?p=13887"},"modified":"2025-11-20T05:05:54","modified_gmt":"2025-11-19T20:05:54","slug":"mc1183015-fix-update-microsoft-sentinel-account-entity-naming-to-avoid-inconsistent-account-identification-in-incidents-and-alerts-3","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-11-20-mc1183015-fix-update-microsoft-sentinel-account-entity-naming-to-avoid-inconsistent-account-identification-in-incidents-and-alerts-3","title":{"rendered":"MC1183015 | Fix\/Update Microsoft Sentinel Account Entity Naming to avoid inconsistent account identification in incidents and alerts"},"content":{"rendered":"
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MC1183015 | Fix\/Update Microsoft Sentinel Account Entity Naming to avoid inconsistent account identification in incidents and alerts<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n
Classification<\/th>\npreventOrFixIssue<\/td>\n<\/tr>\n
Last Updated<\/th>\n11\/19\/2025 19:18:28<\/td>\n<\/tr>\n
Start Time<\/th>\n11\/05\/2025 00:24:20<\/td>\n<\/tr>\n
End Time<\/th>\n08\/10\/2026 08:00:00<\/td>\n<\/tr>\n
Action Required By Date<\/th>\n2026-07-01T08:00:00Z<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

Updated November 19, 2025: We have updated the timing of this change below. Thank you for your patience.<\/p>\n

On July 1, 2026, you may encounter issues if you haven’t updated your analytic rules, automation rules\/playbooks, workbooks, hunting queries, or custom integrations to be precedence-aware for account entity naming. We’ve standardized the account entity naming logic in Microsoft Sentinel incidents and alerts, where the account entity naming priority is: UPN prefix \u2192 name \u2192 display name. Please update your queries and automations to use the new precedence pattern.<\/p>\n

You are receiving this message because our reporting indicates your organization may be using Microsoft Sentinel incidents, alerts (AlertV3), or related automation.<\/p>\n

[When this will happen:]<\/b><\/p>\n

July 1, 2026 (previously February 13, 2026)<\/p>\n

[How this will affect your organization:]
<\/b><\/p>\n

If you don’t fix this problem, these queries, automations, dashboards, and reports that reference account names may be affected:
<\/b><\/p>\n

    \n
  • Analytics (KQL) that filter by, join on, or normalize account names <\/li>\n
  • Automation rules & playbooks (e.g., Logic Apps) that map Account.Name or compare it to other identity fields <\/li>\n
  • Workbooks & dashboards that show account name or aggregate by that value <\/li>\n
  • Hunting queries that coalesce or parse account identity fields <\/li>\n
  • Any users or systems relying on display name as the account identifier<\/li>\n<\/ul>\n

    [What you need to do to prepare:]
    <\/b><\/p>\n

    To fix this problem you need to update your KQL queries and automation logic to use the new precedence-aware pattern for account entity naming. Specifically, use a coalesce pattern (e.g., coalesce(Name, DisplayName)) wherever you reference the account name, and validate your workbooks, dashboards, and playbooks against the new logic. Test changes in a nonproduction workspace before rollout.<\/p>\n<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\n

2025\u5e7411\u670819\u65e5\u66f4\u65b0:\u3053\u306e\u5909\u66f4\u306e\u6642\u671f\u3092\u4ee5\u4e0b\u306b\u66f4\u65b0\u3057\u307e\u3057\u305f\u3002\u3054\u8f9b\u62b1\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002<\/p>\n

2026\u5e747\u67081\u65e5\u6642\u70b9\u3067\u3001\u5206\u6790\u30eb\u30fc\u30eb\u3001\u81ea\u52d5\u5316\u30eb\u30fc\u30eb\/\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3001\u30ef\u30fc\u30af\u30d6\u30c3\u30af\u3001\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0\u30af\u30a8\u30ea\u3001\u30ab\u30b9\u30bf\u30e0\u7d71\u5408\u3092\u30a2\u30ab\u30a6\u30f3\u30c8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30cd\u30fc\u30df\u30f3\u30b0\u306e\u512a\u5148\u9806\u4f4d\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u66f4\u65b0\u3057\u3066\u3044\u306a\u3044\u3068\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Microsoft Sentinel\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u304a\u3088\u3073\u30a2\u30e9\u30fc\u30c8\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u540d\u4ed8\u3051\u30ed\u30b8\u30c3\u30af\u3092\u6a19\u6e96\u5316\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u512a\u5148\u9806\u4f4d\u306fUPN\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9?\u540d\u524d\u3002\u8868\u793a\u540d\u3002\u30af\u30a8\u30ea\u3084\u81ea\u52d5\u5316\u3092\u65b0\u3057\u3044\u512a\u5148\u9806\u4f4d\u30d1\u30bf\u30fc\u30f3\u306b\u66f4\u65b0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u3063\u3066\u3044\u308b\u306e\u306f\u3001\u5f53\u793e\u306e\u5831\u544a\u306b\u3088\u308b\u3068\u3001\u5fa1\u7d44\u7e54\u304cMicrosoft Sentinel\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3001\u30a2\u30e9\u30fc\u30c8(AlertV3)\u3001\u307e\u305f\u306f\u95a2\u9023\u3059\u308b\u81ea\u52d5\u5316\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u793a\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n

[\u3044\u3064\u8d77\u3053\u308b\u304b:]<\/b><\/p>\n

2026\u5e747\u67081\u65e5(\u4ee5\u524d\u306f2026\u5e742\u670813\u65e5)<\/p>\n

[\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u7d44\u7e54\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b:]<\/b><\/p>\n

\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u306a\u3051\u308c\u3070\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3092\u53c2\u7167\u3059\u308b\u30af\u30a8\u30ea\u3001\u81ea\u52d5\u5316\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3001\u30ec\u30dd\u30fc\u30c8\u306b\u5f71\u97ff\u304c\u51fa\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059:<\/b><\/p>\n

    \n
  • \u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u308a\u3001\u53c2\u52a0\u3057\u305f\u308a\u3001\u6b63\u898f\u5316\u3057\u305f\u308a\u3059\u308b\u5206\u6790(KQL)\u3067\u3059<\/li>\n
  • Account.Name \u3092\u4ed6\u306e\u8b58\u5225\u30d5\u30a3\u30fc\u30eb\u30c9\u3068\u30de\u30c3\u30d4\u30f3\u30b0\u307e\u305f\u306f\u6bd4\u8f03\u3059\u308b\u81ea\u52d5\u5316\u30eb\u30fc\u30eb\u3084\u30d7\u30ec\u30a4\u30d6\u30c3\u30af(\u4f8b:Logic Apps)<\/li>\n
  • \u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3084\u305d\u306e\u5024\u3067\u96c6\u8a08\u3059\u308b\u30ef\u30fc\u30af\u30d6\u30c3\u30af\u3084\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9<\/li>\n
  • \u30a2\u30ab\u30a6\u30f3\u30c8\u8b58\u5225\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u7d71\u5408\u307e\u305f\u306f\u89e3\u6790\u3059\u308b\u691c\u7d22\u30af\u30a8\u30ea<\/li>\n
  • \u30a2\u30ab\u30a6\u30f3\u30c8\u8b58\u5225\u5b50\u3068\u3057\u3066\u8868\u793a\u540d\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u3084\u30b7\u30b9\u30c6\u30e0<\/li>\n<\/ul>\n

    [\u6e96\u5099\u306e\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068:]<\/b><\/p>\n

    \u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001KQL\u30af\u30a8\u30ea\u3068\u81ea\u52d5\u5316\u30ed\u30b8\u30c3\u30af\u3092\u66f4\u65b0\u3057\u3001\u65b0\u3057\u3044\u512a\u5148\u9806\u5e8f\u8a8d\u8b58\u30d1\u30bf\u30fc\u30f3\u3092\u30a2\u30ab\u30a6\u30f3\u30c8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30cd\u30fc\u30df\u30f3\u30b0\u306b\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3092\u53c2\u7167\u3059\u308b\u3068\u3053\u308d\u3067coalesce(Name, DisplayName)\u306a\u3069\u306ecoalesce\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3044\u3001\u30ef\u30fc\u30af\u30d6\u30c3\u30af\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3001\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3092\u65b0\u3057\u3044\u30ed\u30b8\u30c3\u30af\u306b\u7167\u3089\u3057\u3066\u691c\u8a3c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5c55\u958b\u524d\u306b\u975e\u672c\u756a\u74b0\u5883\u3067\u5909\u66f4\u3092\u30c6\u30b9\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    MC1183015 | Fix\/Update Microsoft Sentinel Account Entity Naming to avoid inconsistent account identification i […]<\/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-13887","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13887","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=13887"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13887\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=13887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=13887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=13887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}