The childSKUs property of a product is a list of all the SKUs that are children of the product. A product called Apples might have several different SKUs that represent different varieties of apples, such as McIntosh, Delicious, and Granny Smith.

The product item also has a property named displayableSkuAttributes, which you can use to specify a list of the SKU properties that can be displayed using the DisplaySkuProperties servlet bean. For more information about this servlet bean, see the ATG Commerce Guide to Setting Up a Store.