{"id":1519,"date":"2023-05-10T22:00:45","date_gmt":"2023-05-10T13:00:45","guid":{"rendered":"https:\/\/m365jp.xyz\/?p=1519"},"modified":"2023-05-10T22:05:58","modified_gmt":"2023-05-10T13:05:58","slug":"servicerestored-ya552971-yammer-enterprise-some-users-may-have-been-unable-to-access-the-yammer-service-using-external-networks","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2023-05-10-servicerestored-ya552971-yammer-enterprise-some-users-may-have-been-unable-to-access-the-yammer-service-using-external-networks","title":{"rendered":"[serviceRestored] YA552971 | Yammer Enterprise | Some users may have been unable to access the Yammer service using external networks"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">YA552971 | Yammer Enterprise | Some users may have been unable to access the Yammer service using external networks<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Status<\/th>\n<td class=\"bad\">serviceRestored<\/td>\n<\/tr>\n<tr>\n<th>Classification<\/th>\n<td>advisory<\/td>\n<\/tr>\n<tr>\n<th>User Impact<\/th>\n<td>Users may have been unable to access the Yammer service using external networks.<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>05\/10\/2023 12:00:35<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>05\/09\/2023 23:44:00<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>05\/10\/2023 05:49:00<\/td>\n<\/tr>\n<tr>\n<th>Latest Message<\/th>\n<td>Title: Some users may have been unable to access the Yammer service using external networks<\/p>\n<p>  User impact: Users may have been unable to access the Yammer service using external networks.<\/p>\n<p>  More info: Affected users may have seen the error &#8220;Expired signature for O365 JWT&#8221; when access requests failed.<\/p>\n<p>  Final status: We&#8217;ve identified that a recent standard update, intended to prepare the service for the introduction of a new unrelated feature, inadvertently contained a code regression which resulted in access requests failing for users using external networks.   We&#8217;ve reverted the offending change, and confirmed through internal testing that impact is no longer occurring.<\/p>\n<p>  Scope of impact: Impact was specific to some users attempting to access the Yammer service using external networks.<\/p>\n<p>  Start time: Tuesday, May 9, 2023, at 11:44 PM UTC<\/p>\n<p>  End time: Wednesday, May 10, 2023, at 5:49 AM UTC<\/p>\n<p>  Root cause: A recent standard update, intended to prepare the service for the introduction of a new unrelated feature, inadvertently contained a code regression which resulted in access requests failing for users using external networks.<\/p>\n<p>  Next steps:<br \/>  &#8211; We&#8217;re reviewing our standard update procedures to prevent similar impact from happening again.<\/p>\n<p>  This is the final update for the event.<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\u30bf\u30a4\u30c8\u30eb: \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066 Yammer \u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304b\u3063\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n<p>  \u30e6\u30fc\u30b6\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u304c\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066 Yammer \u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>  \u8a73\u7d30\u60c5\u5831: \u5f71\u97ff\u3092\u53d7\u3051\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30a2\u30af\u30bb\u30b9\u8981\u6c42\u304c\u5931\u6557\u3057\u305f\u3068\u304d\u306b &#8220;O365 JWT \u306e\u7f72\u540d\u306e\u6709\u52b9\u671f\u9650\u304c\u5207\u308c\u3066\u3044\u307e\u3059&#8221; 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