The management of the supply chain requires an efficient IT network to control the flow of goods across all the stages (see Chap. 9). The retailer provides the customer with a ready-to-sell version of the detergent. In all the upstream stages of the supply chain, sales data is needed for internal planning and delivery is carried out on order. In the same way, time frames for delivery are stipulated in those stages, in which, for instance, discount prices may be attained upon which the retailer may implement a sales campaign. Moreover, special cases such as direct delivery by the manufacturer to the wholesaler (e.g. a laundry shop) always need to be taken into account in such supply chains.