The following messages are defined in the base ATG Commerce layer.
atg.commerce.fulfillment.SubmitOrder
atg.commerce.promotion.PromotionUsed
atg.commerce.promotion.ActivePromotionMessage
atg.commerce.gifts.GiftPurchased
atg.commerce.inventory.InventoryThresholdReached
atg.commerce.order.ItemAddedToOrder
atg.commerce.order.ItemRemovedFromOrder
atg.commerce.promotion.ScenarioAddedItemToOrder
atg.commerce.order.ItemQuantityChanged
atg.commerce.pricing.PriceChanged
atg.commerce.order.SwitchOrder
atg.commerce.order.OrderSaved