Inside our SharePoint online site collection >> i created a custom content type named "DC" which has the built-in document content type as its parent. then i went to our document library as usual >> enable content type management >> assign the newly created content type to the library. but i got this new message, which i were not getting before:-

enter image description here

so what this message is trying to say ? and is my above steps of assigning a custom content type to our document library still valid? or things have recently changed?


1 Answer 1


In September 2021, Microsoft changed content type publishing working mechanism to improve performance and make newly published and updated content types available to sites faster. This message is just a notice to end users. you can ignore it.

Now there is also a new way to add published content types directly to a list or library. I have listed detailed steps in my answer here: https://docs.microsoft.com/en-us/answers/questions/648314/34content-publishing-has-change34-message-when-ass.html?childToView=648463#answer-648463.

Reference: What’s changed in content type publishing.

  • thanks for your reply,, so this message is concerning the Content Type Publishing syndication site? and not the content type define on the site level? am i correct?
    – John John
    Commented Dec 2, 2021 at 3:56

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