The Discount Distribution Service (DDS) element is the correct pricing element for spreading calculated discounts evenly across quote or order line items. According to Revenue Cloud Pricing documentation, the Discount Distribution Service element allows administrators to apply discounts at the quote header level and automatically distribute those discounts across eligible line items.
The Discount Distribution Service supports multiple distribution methods: equal distribution (where the discount is divided equally across all lines) and proportional distribution (where the discount is allocated based on line item values). It accepts various discount types including dollar amounts, percentages, and target overrides. The element also supports enforcement of minimum unit prices and tracks remaining discount amounts that couldn't be applied due to price floor constraints.
Critically, the DDS element must be positioned as the LAST element in the pricing procedure. This placement ensures that all other pricing calculations are completed before discount distribution occurs. The element configuration requires mapping input variables (header and line item fields including discount type, discount value, distribution logic, and line item pricing) and output variables (resulting discount values, net unit prices, and remainder amounts).
Option A (Formula Based Pricing) is used for custom price calculations but not specifically for discount distribution. Option B (Aggregate Price with SUM) aggregates values but doesn't provide the specialized discount distribution logic and controls that DDS provides. Only the Discount Distribution Service element provides the declarative, out-of-the-box capability to spread calculated discounts evenly across multiple line items.
[References: Salesforce Help - Understand Pricing Elements, Discount Distribution Service Implementation, Revenue Cloud Pricing Procedures documentation, , ]