A. Validate that the catalog appears in the consuming applications.
B. When you publish, the application will attempt to publish all product groups that are unlocked. If you don't want some groups to be published, then you must lock them.
C. After you publish your product groups, if they are not published properly, you can delete them and republish.
D. Enable the catalog by assigning the root node to the "Base" usage.
E. You must publish the root node of the hierarchy in order for it to be available in the Manage Product Group Usage.