1. A system for facilitating the management and electronic ordering of goods or services over an existing electronic financial network, the system comprising: a customer order transaction card for ordering one or more of a plurality of products of a products provider, the transaction card having a storage medium for storing an electronic payment network compatible transaction card identifier unique to a specific customer of a plurality of customers, the card identifier comprising an issuer identifier number and a specific customer account number of a plurality of customer account numbers associated with the product provider; a point of sale terminal configured to interface with a plurality of cards, including the transaction card and to receive one or more of a plurality of product order codes and the card identifier and transmit the one or more of the plurality of product order codes and the card identifier via an existing financial services electronic payment network to an issuer of the customer order transaction card responsive to the existing financial services electronic payment network identifying the issuer of the customer order transaction card; and a computer to facilitate electronic ordering and management of products over the existing financial services electronic payment network to define a member interface protocol computer, the member interface protocol computer comprising: non-transitory memory encoded with computer program operable on the member interface protocol computer, the computer program comprising the instructions of: determining, by the member interface protocol computer, whether a purchase order message received from the issuer of the transaction card sent through the existing financial services electronic payment network satisfies rule-based criteria, the product order message including one or more of the plurality of product order codes and the identifier of the customer order transaction card used at the point of sale terminal; matching, by the member interface protocol computer, each of the one or more of the plurality of product order codes in the purchase order message with one or more of the plurality of corresponding products of the product provider when the purchase order message satisfies the rule-based criteria to thereby create a valid product order; and creating, by the member interface protocol computer, an order notification for the product provider indicating the one or more of the plurality of corresponding products ordered using the existing financial services electronic financial payment network and the associated one or more of the plurality of customers.