The goods which are stored in the 36 silos of the commissioner are made ready using a so called dynamic picking system. In order to pick the small pieces, a carton with the right volume is selected by the warehouse management system. The carton is married with the transport tray by means of the bar code. Depending on the articles to be order picked the trays ejected from the transport line to the relevant order picking stations. If the order is ready the employee can push back the tray and the commissioner can restore the bin.