Since it is the holiday season, it is worth noting that the capability of large retail stores to be supplied relies on cross-docking distribution centers. Orders coming from several suppliers or distribution centers can be sorted so that each individual store receives customized orders. For e-commerce, the cross-docking principle (sortation center) allows sorting parcels bound to postal codes (or other defined areas).
Cross-Docking Distribution Center | The Geography of Transport Systems (transportgeography.org)