The system watches for a customer to use a predefined discount to purchase a product. You can use the optional parameters within this element to specify a promotion to watch for.
Example: Uses promotion named Buy 2 Helmets, Get One Free.
Technical note: This element is triggered when the ScenarioManager receives a PromotionUsed message sent by the SendPromotionUsedMessage processor (class atg.commerce.order.processor.ProcSendPromotionUsedMessage). The processor sends this message when an order containing a promotion passes through the processOrder pipeline chain. For more information, see the Configuring Purchase Process Services chapter in the ATG Commerce Programming Guide.
