Activate Content Type Syndication Hub. Here is the script to create content type hub in SharePoint 2013 using PowerShell. However if you try to do this on Office365 in SharePoint Online you may get an ugly error.
You can view the activated feature in below screenshot. Click Settings and then click Site Settings. When activated content types created in that site collection can be published in all site collections in that environment as long as the feature is activated.
On the Site Content Types page click the name of the content type for which.
Once youre in the Content Type Hub if you go to Site Settings Site Collection Features youll see that the Content Type Syndication Hub feature is already activated for this URL unlike SharePoint on-premises. Once you will enter in the SharePoint Online Content Type Hub Go to Site Settings- Site Collection Features. Publish a content type from a content publishing hub. First you turn on the content syndication hub publishing feature on the site collection that holds all of the content types you are going to reuse throughout your farm.