Plugins » Katello

Steps 3 and 4 in the manual are not necessary any more and should be removed.
https://docs.theforeman.org/3.2/Content_Management_Guide/index-katello.html#Importing_into_the_Library_Environment_content-management

3. On Foreman server where you want to import, create/enable repositories the same name and label as the exported content.
4.In the Foreman web UI, navigate to Content > Products, click the Yum content tab and add the same Yum content that the exported Content View version includes.

Apply the same change for Importing a Repository section.

https://community.theforeman.org/t/clarify-content-management-guide-8-10-importing-into-the-library-environment/28609