Replenishment is a special form of relocation of stocks. In the replenishment process, a quantity of one material is e.g. repositioned from a reserve area to an order picking area. The order picking area is replenished based on the required quantities. Likewise, replenishment can be carried out between different order picking areas (e.g. from a pallet rack to a shelf storage system) or between different reserve areas (e.g. from a complete pallet storage system to a buffer area and from there to an order picking area in small quantities). Replenishment can e.g. be planned based on consumption data, or it can be triggered unplanned through the action of an order picker. The quantity to be replenished can be determined based on different strategies (e.g. based on the results of an analysis of minimum and maximum quantities, or considering outstanding orders or available container sizes).