About Portal Catalogs
When you set up items, categories, and the item category hierarchy for
the Customer and Reseller portals, all portal users see all available items that are active
for the portal. To provide only subsets of those items for certain portal users, you can
create portal catalogs. Each customer bill-to row can be assigned to one portal catalog, and
when a user logs in to the portal, they see only the items specified in that catalog.