Product Categories allow you to group the products of companies into various categories to facilitate searching and reporting.  While you can categorize the products of any company, it will typically be most useful for exhibitor companies added to events.

The Product Categories 1 and 2 are separate and unlinked lists. In other words, the categories under Product Category 2 are not sub-headings under categories of Product Category 1. The separate lists allow you to keep the categories organized under shorter lists, if you prefer.  You could put all of your categories under one big list, or divide them between the two lists using any categorization system you prefer.

Also, the product categories are not mutually exclusive; when you classify each product, you may select more than one category from both lists.  For example, if Product Category 1 included A/V, Catering, Flowers, Decorations, Linens, Office Supplies, etc., when you classify the products of an exhibitor, you could choose both Decorations and Flowers.