Gets or sets the Promotion Code used to store the queriedRate.
This property is optional. The value for this parameter should be taken from the PromotionCode-property of a RatesRequest perfomed before. That is necessary to make sure, that the prices delivered for the RateLink, will not differ from the ones, shown to the customer after RatesRequest.
RateLinkRequest Class | SunnyCars.Schema.Osi.WsReservation.V4 Namespace