Certain exemplary embodiments relate to techniques for order processing. A data feed including unique identifiers of purchased products, together with pairs of order numbers and product identifiers for products ordered from, but not delivered by, a store, is received at an electronic registration system. For each entry therein, a corresponding record in an ER database is created, and a message is transmitted to a supplier of an ordered product indicating that payment has been received for that product when it is determined that the entry is a corresponding order number/product identifier pair. This determination may be based on different masks used in creating a part of the unique identifier, and the order number, respectively. An indication that a product has been or is being shipped, along with a serial number for that product, is received from the supplier, and the ER database is updated as appropriate.