{"id":12273,"date":"2025-07-18T10:01:20","date_gmt":"2025-07-18T01:01:20","guid":{"rendered":"https:\/\/m365jp.net\/?p=12273"},"modified":"2025-07-18T10:02:30","modified_gmt":"2025-07-18T01:02:30","slug":"mc1117115-updates-to-custom-scripting-in-sites-and-classic-publishing-site-creation","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-07-18-mc1117115-updates-to-custom-scripting-in-sites-and-classic-publishing-site-creation","title":{"rendered":"MC1117115 | Updates to custom scripting in sites and Classic Publishing site creation"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1117115 | Updates to custom scripting in sites and Classic Publishing site creation<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>planForChange<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>07\/18\/2025 00:07:08<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>07\/18\/2025 00:06:36<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>11\/15\/2026 08:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p>We are implementing the following changes to custom scripting and classic publishing in SharePoint Online.<\/p>\n<p><b>1. Disablement of custom scripting<\/b><\/p>\n<p>Custom scripting will be disabled by default (setting DenyAddAndCustomizePages to 1 or $true) for sites created with the following templates:<\/p>\n<ul>\n<li>BLANKINTERNETCONTAINER#0 = Classic Publishing Portal Site  <\/li>\n<li>CMSPUBLISHING#0 = Classic Publishing Site  <\/li>\n<li>BLANKINTERNET#0 = Classic Publishing Site Blank<\/li>\n<li>CSPCONTAINER#0 = SharePoint Embedded Site<\/li>\n<\/ul>\n<p>Refer to <a href=\"https:\/\/learn.microsoft.com\/sharepoint\/security-considerations-of-allowing-custom-script\" target=\"_blank\">  this documentation<\/a> to learn more about the security considerations of ungoverned scripting.<\/p>\n<p><b>2. Ability to set site property bag valued without requiring custom scripting enablement.<\/b><\/p>\n<p>Users no longer need to set DenyAddAndCustomizePages to $false or 0 (i.e. enable custom scripting) in a site to manage site property bag values. We have introduced a new AllowWebPropertyBagUpdateWhenDenyAddAndCustomizePagesIsEnabled setting at the site level   and at the tenant level to allow adding\/managing site property bag values. Please see documentation here for  <a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/sharepoint-online\/set-spotenant?view=sharepoint-ps#-allowwebpropertybagupdatewhendenyaddandcustomizepagesisenabled\" target=\"_blank\">  tenant level setting<\/a>&nbsp;and here for <a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/sharepoint-online\/set-sposite?view=sharepoint-ps#-allowwebpropertybagupdatewhendenyaddandcustomizepagesisenabled\" target=\"_blank\">  the site level setting.<\/a>&nbsp;<\/p>\n<p><b>3. Classic publishing sites creation and feature activation changes<\/b><\/p>\n<p>Users will no longer be able to create new classic publishing related site collections or activate publishing features in existing site collections. This applies to both UX and API interactions.<\/p>\n<p>Sites collections with the following templates cannot be created:<\/p>\n<ul>\n<li>BLANKINTERNETCONTAINER#0 = Publishing Portal Site  <\/li>\n<li>CMSPUBLISHING#0 = Publishing Site  <\/li>\n<li>BLANKINTERNET#0 = Publishing Site Blank  <\/li>\n<li>ENTERWIKI#0 = Enterprise Wiki  <\/li>\n<li>SRCHCEN#0 = Enterprise Search Center  <\/li>\n<li>SPSSITES#0 = Site Directory  <\/li>\n<li>SPSNHOME#0 = News Home Site  <\/li>\n<li>PRODUCTCATALOG#0 = Product Catalog  <\/li>\n<li>SPSREPORTCENTER#0 = Report Center  <\/li>\n<li>SPSTOPIC#0 = Topic Area Template<\/li>\n<\/ul>\n<p style=\"\">Existing classic publishing enabled site collections are unaffected and can continue regular usage, including creation of sub sites.<\/p>\n<p>[When this will happen]<\/p>\n<p>Both changes, the extended custom scripting governance and the new classic publishing restrictions, will take effect starting  <b>September 15, 2025<\/b>.<\/p>\n<p>[How this will affect your organization]  <\/p>\n<ul>\n<li>When custom scripting is disabled in classic publishing sites, users will no longer be able to use script editor web parts, create custom master pages or page layouts, and utilize several other features. More details on features affected when custom scripting   is disabled can be viewed in <a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/allow-or-prevent-custom-script#features-affected-when-custom-script-is-blocked\" target=\"_blank\">  this documentation<\/a>.<\/li>\n<\/ul>\n<p>  <\/p>\n<ul>\n<li>With the change to stop the creation of new classic publishing site collections and publishing feature activation, SharePoint admins will no longer be able to create new classic publishing enabled site collections or enable publishing features at site collection   level.<\/li>\n<\/ul>\n<p>[What you need to do to prepare]<\/p>\n<p>We recommend taking the following actions to prepare for these upcoming changes.<\/p>\n<p>  <\/p>\n<p>1. Inform owners of the classic publishing sites in your organization of these upcoming changes. Promote switching to use of Modern sites. Refer to  <a href=\"https:\/\/learn.microsoft.com\/sharepoint\/dev\/transform\/modernize-guidance\" target=\"_blank\">  this guide<\/a>.<\/p>\n<p>2. To temporarily opt out of the custom scripting enforcement in classic publishing sites for your tenant until  <b>March 15, 2026<\/b>, use the following PowerShell command:  <\/p>\n<p><code>Set-SPOTenant -DelayDenyAddAndCustomizePagesEnforcementOnClassicPublishingSites $true<\/code><\/p>\n<p>3. To temporarily opt out of custom scripting enforcement for a specific site (with any template) with tenant admin approval (effective for 24 hours), use the following PowerShell command:  <\/p>\n<p><code>Set-SPOSite &lt;SiteURL&gt;&nbsp;<siteurl>-DenyAddAndCustomizePages $false<\/siteurl><\/code><\/p>\n<p>4. If you need to allow the creation of new classic publishing site collections or enable publishing feature activations, use the following PowerShell command set the flag to allow.<\/p>\n<p><code>Set-SPOTenant -AllowClassicPublishingSiteCreation $true<\/code><\/p>\n<p>NOTE: <\/p>\n<ul>\n<li>You need to install the latest (<a href=\"https:\/\/www.microsoft.com\/en-us\/download\/details.aspx?id=35588&amp;msockid=1928b372f07766b62b63a78cf1426719\" target=\"_blank\">16.0.26211.12010<\/a> or higher) SharePoint Online Management Shell in order to run the commands   above.<\/li>\n<li>The DelayDenyAddAndCustomizePagesEnforcementOnClassicPublishingSites command is scheduled to end starting on  <b>March 15, 2026,<\/b> while all other commands are expected to remain functional beyond that date.&nbsp;<\/li>\n<\/ul>\n<p>[Compliance considerations]<\/p>\n<p><b><br \/>  <\/b><\/p>\n<p>There is no impact or change to compliance.<\/p>\n<p>[Referenced content]  <\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/security-considerations-of-allowing-custom-script\" target=\"_blank\">Security considerations of allowing custom script &#8211; SharePoint in Microsoft 365 | Microsoft Learn<\/a><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/allow-or-prevent-custom-script\" target=\"_blank\">Allow or prevent custom script &#8211; SharePoint in Microsoft 365 | Microsoft Learn<\/a><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/dev\/transform\/modernize-guidance\" target=\"_blank\">SharePoint modernization guidance | Microsoft Learn<\/a><\/p>\n<p>  <\/p>\n<p>  <\/p>\n<p>  <\/p>\n<p>  <\/p>\n<\/p>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<p>SharePoint Online \u306e\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u3068\u5f93\u6765\u306e\u767a\u884c\u306b\u6b21\u306e\u5909\u66f4\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><b>1. \u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u7121\u52b9\u5316<\/b><\/p>\n<p>\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001\u6b21\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u4f5c\u6210\u3055\u308c\u305f\u30b5\u30a4\u30c8\u306b\u5bfe\u3057\u3066\u65e2\u5b9a\u3067\u7121\u52b9\u306b\u306a\u308a\u307e\u3059 (DenyAddAndCustomizePages \u3092 1 \u307e\u305f\u306f $true \u306b\u8a2d\u5b9a)\u3002<\/p>\n<ul>\n<li>BLANKINTERNETCONTAINER#0 = \u30af\u30e9\u30b7\u30c3\u30af\u30d1\u30d6\u30ea\u30c3\u30b7\u30f3\u30b0\u30dd\u30fc\u30bf\u30eb\u30b5\u30a4\u30c8<\/li>\n<li>CMSPUBLISHING#0 = \u30af\u30e9\u30b7\u30c3\u30af \u30d1\u30d6\u30ea\u30c3\u30b7\u30f3\u30b0 \u30b5\u30a4\u30c8<\/li>\n<li>BLANKINTERNET#0 = \u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u30b5\u30a4\u30c8\u306e\u7a7a\u767d<\/li>\n<li>CSPCONTAINER#0 = SharePoint \u7d44\u307f\u8fbc\u307f\u30b5\u30a4\u30c8<\/li>\n<\/ul>\n<p>\u7ba1\u7406\u3055\u308c\u3066\u3044\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001 <a href=\"https:\/\/learn.microsoft.com\/sharepoint\/security-considerations-of-allowing-custom-script\" target=\"_blank\">  \u3053\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a> \u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><b>2.\u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30b5\u30a4\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u30d0\u30c3\u30b0\u3092\u4fa1\u5024\u306b\u8a2d\u5b9a\u3059\u308b\u6a5f\u80fd\u3002<\/b><\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30b5\u30a4\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3 \u30d0\u30c3\u30b0\u306e\u5024\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u30b5\u30a4\u30c8\u3067 DenyAddAndCustomizePages \u3092 $false \u307e\u305f\u306f 0 \u306b\u8a2d\u5b9a\u3059\u308b (\u3064\u307e\u308a\u3001\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u6709\u52b9\u306b\u3059\u308b) \u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u30b5\u30a4\u30c8 \u30d7\u30ed\u30d1\u30c6\u30a3 \u30d0\u30c3\u30b0\u5024\u306e\u8ffd\u52a0\/\u7ba1\u7406\u3092\u8a31\u53ef\u3059\u308b\u305f\u3081\u306b\u3001\u30b5\u30a4\u30c8 \u30ec\u30d9\u30eb\u3068\u30c6\u30ca\u30f3\u30c8 \u30ec\u30d9\u30eb\u3067\u65b0\u3057\u3044 AllowWebPropertyBagUpdateWhenDenyAddAndCustomizePagesIsEnabled \u8a2d\u5b9a\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002  <a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/sharepoint-online\/set-spotenant?view=sharepoint-ps#-allowwebpropertybagupdatewhendenyaddandcustomizepagesisenabled\" target=\"_blank\">  \u30c6\u30ca\u30f3\u30c8 \u30ec\u30d9\u30eb\u306e\u8a2d\u5b9a<\/a>&nbsp;\u306b\u3064\u3044\u3066\u306f \u3053\u3061\u3089 \u3092\u3001 <a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/sharepoint-online\/set-sposite?view=sharepoint-ps#-allowwebpropertybagupdatewhendenyaddandcustomizepagesisenabled\" target=\"_blank\">  \u30b5\u30a4\u30c8 \u30ec\u30d9\u30eb\u306e\u8a2d\u5b9a<\/a>\u306b\u3064\u3044\u3066\u306f \u3053\u3061\u3089 \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/p>\n<p><b>3. \u5f93\u6765\u306e\u767a\u884c\u30b5\u30a4\u30c8\u306e\u4f5c\u6210\u3068\u6a5f\u80fd\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u306e\u5909\u66f4<\/b><\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u65b0\u3057\u3044\u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u95a2\u9023\u306e\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3057\u305f\u308a\u3001\u65e2\u5b58\u306e\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u767a\u884c\u6a5f\u80fd\u3092\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001UX\u3068API\u306e\u4e21\u65b9\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6301\u3064\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306f\u4f5c\u6210\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li>BLANKINTERNETCONTAINER#0 = \u30dd\u30fc\u30bf\u30eb\u30b5\u30a4\u30c8\u306e\u516c\u958b<\/li>\n<li>CMSPUBLISHING#0 = \u767a\u884c\u30b5\u30a4\u30c8<\/li>\n<li>BLANKINTERNET#0 = \u516c\u958b\u30b5\u30a4\u30c8\u304c\u7a7a\u767d<\/li>\n<li>ENTERWIKI#0 = \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30a6\u30a3\u30ad<\/li>\n<li>SRCHCEN#0 = \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u691c\u7d22\u30bb\u30f3\u30bf\u30fc<\/li>\n<li>SPSSITES#0 = \u30b5\u30a4\u30c8 \u30c7\u30a3\u30ec\u30af\u30c8\u30ea<\/li>\n<li>SPSNHOME#0 = \u30cb\u30e5\u30fc\u30b9\u30db\u30fc\u30e0 \u30b5\u30a4\u30c8<\/li>\n<li>PRODUCTCATALOG#0 = \u88fd\u54c1\u30ab\u30bf\u30ed\u30b0<\/li>\n<li>SPSREPORTCENTER#0 = \u30ec\u30dd\u30fc\u30c8 \u30bb\u30f3\u30bf\u30fc<\/li>\n<li>SPSTOPIC#0 = \u30c8\u30d4\u30c3\u30af\u9818\u57df\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/li>\n<\/ul>\n<p style=\"\">\u65e2\u5b58\u306e\u5f93\u6765\u306e\u767a\u884c\u304c\u6709\u52b9\u306a\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306f\u5f71\u97ff\u3092\u53d7\u3051\u305a\u3001\u30b5\u30d6\u30b5\u30a4\u30c8\u306e\u4f5c\u6210\u306a\u3069\u3001\u901a\u5e38\u306e\u4f7f\u7528\u3092\u7d9a\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3010\u3044\u3064\u5b9f\u73fe\u3059\u308b\u306e\u304b\u3011<\/p>\n<p>\u62e1\u5f35\u3055\u308c\u305f\u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\u30ac\u30d0\u30ca\u30f3\u30b9\u3068\u65b0\u3057\u3044\u30af\u30e9\u30b7\u30c3\u30af\u30d1\u30d6\u30ea\u30c3\u30b7\u30f3\u30b0\u5236\u9650\u306e\u4e21\u65b9\u306e\u5909\u66f4\u306f\u3001 <b>2025\u5e749\u670815<\/b>\u65e5\u304b\u3089\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>[\u3053\u308c\u304c\u7d44\u7e54\u306b\u4e0e\u3048\u308b\u5f71\u97ff]  <\/p>\n<ul>\n<li>\u5f93\u6765\u306e\u767a\u884c\u30b5\u30a4\u30c8\u3067\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7121\u52b9\u306b\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30b9\u30af\u30ea\u30d7\u30c8 \u30a8\u30c7\u30a3\u30bf\u30fc Web \u30d1\u30fc\u30c4\u3092\u4f7f\u7528\u3057\u305f\u308a\u3001\u30ab\u30b9\u30bf\u30e0 \u30de\u30b9\u30bf\u30fc \u30da\u30fc\u30b8\u3084\u30da\u30fc\u30b8 \u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u4f5c\u6210\u3057\u305f\u308a\u3001\u305d\u306e\u4ed6\u306e\u3044\u304f\u3064\u304b\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u6a5f\u80fd\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001  <a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/allow-or-prevent-custom-script#features-affected-when-custom-script-is-blocked\" target=\"_blank\">  \u3053\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<p>  <\/p>\n<ul>\n<li>\u65b0\u3057\u3044\u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3068\u767a\u884c\u6a5f\u80fd\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u3092\u505c\u6b62\u3059\u308b\u5909\u66f4\u306b\u3088\u308a\u3001SharePoint \u7ba1\u7406\u8005\u306f\u65b0\u3057\u3044\u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u304c\u6709\u52b9\u306a\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3057\u305f\u308a\u3001\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3 \u30ec\u30d9\u30eb\u3067\u767a\u884c\u6a5f\u80fd\u3092\u6709\u52b9\u306b\u3057\u305f\u308a\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3010\u6e96\u5099\u306b\u5fc5\u8981\u306a\u3053\u3068\u3011<\/p>\n<p>\u3053\u308c\u3089\u306e\u4eca\u5f8c\u306e\u5909\u66f4\u306b\u5099\u3048\u308b\u305f\u3081\u306b\u3001\u6b21\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>  <\/p>\n<p>1. \u7d44\u7e54\u5185\u306e\u5f93\u6765\u306e\u767a\u884c\u30b5\u30a4\u30c8\u306e\u6240\u6709\u8005\u306b\u3001\u3053\u308c\u3089\u306e\u4eca\u5f8c\u306e\u5909\u66f4\u3092\u901a\u77e5\u3057\u307e\u3059\u3002\u30e2\u30c0\u30f3 \u30b5\u30a4\u30c8\u306e\u4f7f\u7528\u3078\u306e\u5207\u308a\u66ff\u3048\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002 <a href=\"https:\/\/learn.microsoft.com\/sharepoint\/dev\/transform\/modernize-guidance\" target=\"_blank\">  \u3053\u306e\u30ac\u30a4\u30c9<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>2. <b>2026 \u5e74 3 \u6708 15<\/b> \u65e5\u307e\u3067\u3001\u30c6\u30ca\u30f3\u30c8\u306e\u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u30b5\u30a4\u30c8\u3067\u306e\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u306e\u9069\u7528\u3092\u4e00\u6642\u7684\u306b\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8\u3059\u308b\u306b\u306f\u3001\u6b21\u306e PowerShell \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p><code>Set-SPOTenant -DelayDenyAddAndCustomizePagesEnforcementOnClassicPublishingSites $true<\/code><\/p>\n<p>3. \u30c6\u30ca\u30f3\u30c8\u7ba1\u7406\u8005\u306e\u627f\u8a8d (24 \u6642\u9593\u6709\u52b9) \u3092\u4f7f\u7528\u3057\u3066\u3001\u7279\u5b9a\u306e\u30b5\u30a4\u30c8 (\u4efb\u610f\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4f7f\u7528) \u306b\u5bfe\u3059\u308b\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u306e\u9069\u7528\u3092\u4e00\u6642\u7684\u306b\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8\u3059\u308b\u306b\u306f\u3001\u6b21\u306e PowerShell \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p><code>Set-SPOSite &lt;SiteURL&gt;&nbsp;<siteurl>-DenyAddAndCustomizePages $false<\/siteurl><\/code><\/p>\n<p>4. \u65b0\u3057\u3044\u30af\u30e9\u30b7\u30c3\u30af\u767a\u884c\u30b5\u30a4\u30c8 \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3092\u8a31\u53ef\u3059\u308b\u304b\u3001\u767a\u884c\u6a5f\u80fd\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u3092\u6709\u52b9\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u6b21\u306e PowerShell \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30e9\u30b0\u3092 allow \u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><code>Set-SPOTenant -AllowClassicPublishingSiteCreation $true<\/code><\/p>\n<p>\u624b\u8a18\uff1a <\/p>\n<ul>\n<li>\u4e0a\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001\u6700\u65b0\u306e (<a href=\"https:\/\/www.microsoft.com\/en-us\/download\/details.aspx?id=35588&amp;msockid=1928b372f07766b62b63a78cf1426719\" target=\"_blank\">16.0.26211.12010<\/a> \u4ee5\u964d) SharePoint Online \u7ba1\u7406\u30b7\u30a7\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>DelayDenyAddAndCustomizePagesEnforcementOnClassicPublishingSites \u30b3\u30de\u30f3\u30c9\u306f <b>2026 \u5e74 3 \u6708 15<\/b> \u65e5\u304b\u3089\u7d42\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u304c\u3001\u4ed6\u306e\u3059\u3079\u3066\u306e\u30b3\u30de\u30f3\u30c9\u306f\u305d\u306e\u65e5\u4ed8\u3092\u8d85\u3048\u3066\u5f15\u304d\u7d9a\u304d\u6a5f\u80fd\u3059\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002&nbsp;<\/li>\n<\/ul>\n<p>\u3010\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u4e0a\u306e\u7559\u610f\u4e8b\u9805\u3011<\/p>\n<p><b><br \/>  <\/b><\/p>\n<p>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3084\u5909\u66f4\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3010\u53c2\u8003\u306b\u3057\u305f\u5185\u5bb9\u3011<\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/security-considerations-of-allowing-custom-script\" target=\"_blank\">\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8a31\u53ef\u3059\u308b\u5834\u5408\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805 &#8211; Microsoft 365 \u306e SharePoint |\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8 \u30e9\u30fc\u30f3<\/a><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/allow-or-prevent-custom-script\" target=\"_blank\">\u30ab\u30b9\u30bf\u30e0 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8a31\u53ef\u307e\u305f\u306f\u7981\u6b62\u3059\u308b &#8211; Microsoft 365 \u306e SharePoint |\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8 \u30e9\u30fc\u30f3<\/a><\/p>\n<p><a href=\"https:\/\/learn.microsoft.com\/en-us\/sharepoint\/dev\/transform\/modernize-guidance\" target=\"_blank\">SharePoint \u306e\u6700\u65b0\u5316\u30ac\u30a4\u30c0\u30f3\u30b9 |\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8 \u30e9\u30fc\u30f3<\/a><\/p>\n<p>  <\/p>\n<p>  <\/p>\n<p>  <\/p>\n<p>  <\/p>\n<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1117115 | Updates to custom scripting in sites and Classic Publishing site creation Classification planForCh [&hellip;]<\/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-12273","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12273","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=12273"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12273\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}