How we can be sure at customer demand is fulfilled and ATP counting works as most manufacturing/sales companies want ? Solution need function where materials/goods get automatic reservation when latest available time is reached. In that case all customer demands should be counted. Why ? Business doesn't work as FIFO - new customer orders come exists in middle of open order pool. If this "latest fulfill" reservation function is missing then stock values rising rapitly when company using automatic reservations based on released sales orders.