Abstract: A method comprises receiving an e-retail order comprising one or more products sold through an e-retail application associated with an established infrastructure of a plurality of retail sites and a plurality of flow centers and determining a location of a primary retail site closest proximity to a delivery address associated with the e-retail order. The method further comprises determining a location of the ordered products within the infrastructure and the most cost-effective handling option to place the ordered products at the primary retail site. The most cost-effective handling option is based on initiating delivery of a shippable unit containing the ordered products from the primary retail site. The method further comprises executing the most cost-effective handling option and initiating delivery of the shippable unit to the delivery address from the primary retail site.

Abstract: A computer-implemented method includes receiving a list of items in a purchase order and accessing inventories of items available at each location. The functioning of the computer is improved by reducing the number of combinations of locations and items that must be considered to find a combination of locations and items that provides a lowest total fulfillment cost through steps that begin with identifying all combinations of the items in the list of items. For each combination, a location that can ship that combination at a lowest fulfillment cost is identified. A fulfillment superset is selected that is formed from one or more combinations, provides all of the items in the list of items and has a lowest total fulfillment cost.