Field help (REATYP)
Replenishment on threshold: the replenishment is triggered if the stock of the picking location is strictly lower than the threshold defined for the location to be replesnished. The stock of the picking location is defined as being the total of the stock object of the location, with or without pending input movments.
Systematic replenishment: the replenishment is systematically triggered, irrespective of the available stock, if the picking location is not full.