{"id":15062,"date":"2026-02-21T07:00:48","date_gmt":"2026-02-20T22:00:48","guid":{"rendered":"https:\/\/m365jp.net\/?p=15062"},"modified":"2026-02-21T07:01:32","modified_gmt":"2026-02-20T22:01:32","slug":"servicedegradation-ex1232513-exchange-online-some-admins-may-be-unable-to-perform-tenant-to-tenant-migrations-and-offboarding-moves-in-exchange-online-3","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-02-21-servicedegradation-ex1232513-exchange-online-some-admins-may-be-unable-to-perform-tenant-to-tenant-migrations-and-offboarding-moves-in-exchange-online-3","title":{"rendered":"[serviceDegradation] EX1232513 | Exchange Online | Some admins may be unable to perform tenant to tenant migrations and offboarding moves in Exchange Online"},"content":{"rendered":"
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EX1232513 | Exchange Online | Some admins may be unable to perform tenant to tenant migrations and offboarding moves in Exchange Online<\/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>\nAdmins may be unable to perform tenant to tenant migrations and offboarding moves in Exchange Online.<\/td>\n<\/tr>\n
Last Updated<\/th>\n02\/20\/2026 21:02:05<\/td>\n<\/tr>\n
Start Time<\/th>\n02\/15\/2026 01:44:21<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some admins may be unable to perform tenant to tenant migrations and offboarding moves in Exchange Online<\/p>\n

User impact: Admins may be unable to perform tenant to tenant migrations and offboarding moves in Exchange Online.<\/p>\n

More info: While we work on developing a long-term solution, admins may use PowerShell for the affected migrations and moves with the following cmdlet against the affected mailboxes:<\/p>\n

Set-MoveRequest “user@yourdomain.com&quot<\/a>; -SkipMoving FolderRestrictions<\/p>\n

The tenant admin may then resume the move request (Resume-MoveRequest “user@yourdomain.com&quot<\/a>\ud83d\ude09 or simply resume the migration batch. This will allow the affected move jobs to continue to make progress.<\/p>\n

Admins attempting to complete a tenant-to-tenant migration or an offboarding move in Exchange Online will be returned the following error “PropTagToPropertyDefinitionConversionException”<\/p>\n

Current status: We’re in the final stages of the development of our solution to address the code regression and we’re preparing to begin testing this fix to validate that it’ll successfully remediate the impact. We’ll provide a timeline for resolution as one becomes available.<\/p>\n

Scope of impact: Some admins attempting to perform tenant to tenant migrations and offboarding moves in Exchange Online may be affected. This information may be updated as our investigation continues.<\/p>\n

Root cause: A change introduced a code regression to Mailbox Replication Service (MRS), which causes intermittent failures for tenant-to-tenant migration actions or offboarding moves as the property tags needed to complete the request are not being properly configured.<\/p>\n

Next update by: Thursday, February 26, 2026, at 10:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u4e00\u90e8\u306e\u7ba1\u7406\u8005\u306f\u3001Exchange Online\u3067\u30c6\u30ca\u30f3\u30c8\u9593\u306e\u79fb\u884c\u3084\u30aa\u30d5\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u79fb\u52d5\u304c\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u7ba1\u7406\u8005\u306fExchange Online\u3067\u30c6\u30ca\u30f3\u30c8\u9593\u306e\u79fb\u884c\u3084\u30aa\u30d5\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u79fb\u52d5\u304c\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831:\u9577\u671f\u7684\u306a\u89e3\u6c7a\u7b56\u306e\u958b\u767a\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u9593\u3001\u7ba1\u7406\u8005\u306f\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5bfe\u3057\u3066\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u30ec\u30c3\u30c8\u3092\u9069\u7528\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u79fb\u884c\u3084\u79fb\u52d5\u306bPowerShell\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

Set-MoveRequest “user@yourdomain.com&quot<\/a>; – SkipMoving FolderRestrictions<\/p>\n

\u30c6\u30ca\u30f3\u30c8\u7ba1\u7406\u8005\u306f\u305d\u306e\u5f8c\u3001\u79fb\u52d5\u30ea\u30af\u30a8\u30b9\u30c8(Resume-MoveRequest “user@yourdomain.com&quot<\/a>;)\u3092\u518d\u958b\u3059\u308b\u304b\u3001\u5358\u306b\u79fb\u884c\u30d0\u30c3\u30c1\u3092\u518d\u958b\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u79fb\u52d5\u306e\u4ed5\u4e8b\u306f\u5f15\u304d\u7d9a\u304d\u9032\u5c55\u3092\u9042\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

Exchange Online\u3067\u30c6\u30ca\u30f3\u30c8\u9593\u306e\u79fb\u884c\u3084\u30aa\u30d5\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u624b\u7d9a\u304d\u3092\u8a66\u307f\u308b\u7ba1\u7406\u8005\u306b\u306f\u3001\u300cPropTagToPropertyDefinitionConversionException\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u73fe\u72b6:\u30b3\u30fc\u30c9\u306e\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u6700\u7d42\u6bb5\u968e\u306b\u3042\u308a\u3001\u3053\u306e\u4fee\u6b63\u304c\u78ba\u5b9f\u306b\u6539\u5584\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u306e\u30c6\u30b9\u30c8\u3092\u958b\u59cb\u3059\u308b\u6e96\u5099\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002\u89e3\u6c7a\u307e\u3067\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u304c\u5206\u304b\u308a\u6b21\u7b2c\u3001\u304a\u77e5\u3089\u305b\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2:Exchange Online\u3067\u30c6\u30ca\u30f3\u30c8\u9593\u306e\u79fb\u884c\u3084\u30aa\u30d5\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u8a66\u307f\u308b\u7ba1\u7406\u8005\u304c\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306f\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6839\u672c\u539f\u56e0:Mailbox Replication Service(MRS)\u306b\u5909\u66f4\u306b\u3088\u308a\u30b3\u30fc\u30c9\u56de\u5e30\u304c\u5c0e\u5165\u3055\u308c\u3001\u8981\u6c42\u3092\u5b8c\u7d50\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u30bf\u30b0\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u30c6\u30ca\u30f3\u30c8\u9593\u306e\u79fb\u884c\u4f5c\u696d\u3084\u30aa\u30d5\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u79fb\u52d5\u3067\u65ad\u7d9a\u7684\u306b\u5931\u6557\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0\u65e5:2026\u5e742\u670826\u65e5\u6728\u66dc\u65e5 22:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX1232513 | Exchange Online | Some admins may be unable to perform tenant to tenant migrations and offboarding […]<\/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-15062","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/15062","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=15062"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/15062\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=15062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=15062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=15062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}