Cash discount based of payment terms is realized at the time of incoming payment and could apply to multiple line items in the invoice. So company might expect SAP to distribute these discounts to multiple profitability segments based of the invoice line items. In such requirement, use program SAPF181 to distribute discounts to profitability segments and profit centers derived from invoice. The following are the pre-requisites:
1. Discount account should have a cost element with cost element category “1”.
2. At incoming posting the discount has to be posted to a cost object such as cost center or internal order. You can use OKB9 to determine the object. Do not activate/check profitability segment in OKB9. (This value is distributed to PA and PC based of the invoice using program SAPF181)
3. Maintain PA transfer structure for the discount cost element pointing to the right value field.
At month end run program SAPF181. All costs are cleared from the cost objects and distributed to profitability segments and profit centers proportionately based of the invoice the cash discount belongs to.
FICO bites 