Has anyone configured the Manufacturing (we have manufacturing WIP, Routing and Work Center) to manage Assembly line production? We currently use work orders and WIP, but not routing. The reason we cannot use Routing with the way it works is because our work orders are variable sizes, but are done in batches. So, if I configured a batch of 100 units to be made in 1 week (manufacturing lead time), and then issue work order for 50 units, it will simply show me half a week, but that's not practically the case due to set-up time. The second issue is that Assembly lines have to be set-up for each style change, but can keep going if there is no style change. The third issue is that each Assembly line can be configured to make whichever product we want - obviously there are efficiency trade-offs with using mis-matched lines. I am looking for advice about how to configure the system to accomplish backwards or forwards planning ability i.e. when we drop an order, the system looks at the materials and capacity (by assembly lines) and then provides a ready date...