Many businesses have complex purchasing operations. Large companies often have corporate purchasing groups as well as local purchasing. This can lead to vendors being given multiple contracts leading to variations in prices depending on location. Companies that practice lean supply chain management reduce their procurement function so that each vendor has one point of contact, one contract and offers one price for all locations. Businesses are looking to new technologies to assist them in improving procurement processes. These include internet based purchasing that allows requisitioners to purchase items from vendor’s catalogs containing company wide contract prices. Changes in payment options to vendors can also streamline processes. Companies that use a two-way match, which is payment on receipt rather than payment on invoice, will reduce resources in their purchasing department as well as improve supplier relationships.