When you know the items needed for each order, you can ensure that stock moves from the reserve area to the picking area before the picking takes place. Use Wave Replenishment (4.15.6) to replenish items in the picking area. This ensures that quantities are sufficient to meet the demands for the order lines in the wave.

When you run wave replenishment, the system considers the requirement for the item on the wave and all open waves that require the item. If other waves require the item, the system adds the requirement to the warehouse staff assigned to the replenishment task for the waves. When you run wave replenishment for the other waves that require the item, the system checks not only existing stock in the picking location but all the stock expected to arrive in the picking location. This ensures that there is enough stock to cover existing replenishment tasks.