How to enable the category for supplier rebate type (not Supplier annual rebate)

Summary:

How to enable the category for supplier rebate type (not Supplier annual rebate)

Content (required):

In Using Channel Revenue Management Page 25. It mention below User-defined attributes (UDA) for product categories. How can we enable this.

Product Qualifier: Product rules take the form of Product Qualifier = Qualifier Value. Supported product

qualifiers are:

- Item

- All Items

Note: All Items means all items that are on the supplier invoice and defined in the item master.

The item specified in the supplier invoice CSV file must be defined in the item master as well.

Description based items that are not defined in the item master are not supported.