With any group of categories, you need to know where to start when navigating. In an ATG Commerce catalog, a starting point is called a root category.

Designate a category as a root category by setting the value of its root property to true. The value of this property is false by default, but you can set it to true for categories you want to designate as the top level of the product catalog.

ATG Commerce includes a targeter that finds all categories whose root property is true. You can use this targeter in a JSP as a way to start the navigation chain. See the Catalog Navigation and Searching chapter of the ATG Commerce Guide to Setting Up a Store for an example of using this targeter to find root categories.

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