What's a rollup catalog?

Use a rollup catalog to create a hierarchy that feeds data to the forecast.

A sales catalog can have the same product group appear multiple times in its hierarchy. For example, the product group Toys can be part of the Children category as well as the Electronics category within the same catalog. However, in forecasts, each product appears only once, so the rollup catalog can't have the same product group appear multiple times in its hierarchy.

Note: The Allow Duplicate Children check box controls whether a product group can have duplicate child nodes.