An automated order-picking system for conveying article units towards a workstation, including at least one storage rack having a plurality of storage locations for receiving load supports, on which or in which article units are stored, preferably by one sort only, wherein the storage rack is divided into rack regions, wherein each of the rack region comprises a plurality of rack planes which respectively comprise a plurality of storage locations being arranged side-by-side, one endlessly rotating central conveyor, particularly a conveyor belt, being arranged along a longitudinal side of the storage rack and preferably between two storage racks, and which is divided into a plurality of windows, a number of vertical elevators being arranged one behind the other along the longitudinal side of the storage rack, and which respectively comprise one load suspension device for receiving and delivering of at least one of the storage units.