There are two separate item categories in sales documents for product selection. The item category TAX contains specifications for the main item (original product). The other, TAPS, contains specifications for the sub-items (substitute product).

Review the item category configurations in the standard system. If these do not meet your requirements, perform the activities in the following topics to modify the item category configuration, or create your own categories. Note that if your product selection procedure requires that pricing be done at the main item instead of the sub-item, you will have to create new item categories.

The following examples detail how pricing is carried out at the main item level and sub-item level for product selection.

In this first example, the price for the order is determined based on the price condition records for the main item only. You have deactivated pricing for the sub-item category, so the system does not determine a price for it. Since both the main item and the sub-item categories are relevant for billing, the prices (even if there is no price) are copied to the invoice and billed accordingly.

In this second example, the price for the order is determined based on the price condition records for the sub-items. You have deactivated pricing for the main item category, so the system does not determine a price for it. Since both the main item and the sub-item categories are relevant for billing, the prices (even if there is no price) are copied to the invoice and billed accordingly.