For standard catalogs, a product’s parent category for reporting purposes is determined by the value of its parentCategory property. If you are using custom catalogs, each product can have multiple parent categories, one for each catalog that includes the product. Therefore, you must designate a reporting catalog, which determines which catalog supplies the parent category information for a given product. You can do this in the reportingCatalogId property of the /atg/reporting/datawarehouse/CommerceWarehouseConfiguration component. This property is null by default. If the property is null and a product has only a single parent category, that category is used. If it is null and there is more than one potential parent category, the first category is used, and a warning is logged.
