The alternative is a pull production that we support in PROPOS. Every production cell with available capacity starts asking for new orders. More capacity means more work is requested. The last production cells request orders from the upstream production cells. They, in turn, require work from the production cells before them, and so on. Partly based on that question, orders are automatically prioritized. Production cells that are already starting to fill up will, therefore, be allocated less work than production cells that still have enough space. This is continuously monitored and optimized in real time without you having to worry about it.