Navision in chemical and brewery industry

Well, the problem is that Navision uses BOMs in discrete quantities while chemical industry uses recipes in percentages, and even if you hack it, what you still have is a basic system where you turn material inventory to product inventory by posting production orders, nothing else, and this hardly worth implementing an ERP. Navision's capacitiy planning is totally useless for any industry that is not thinking in "homogenous machine centers" terms, and it lacks the sophisticated process control the chemical industry needs. Also, another problem is that Navision expects to eventually ship/receive exactly the same quantity as in the sales/purchase order, or else you have problems in the long run, and this is not feasible in this industry. So I'd suggest an add-on, or a custom development, but the later one only if you have someone who is really an expert in both ERP design and chemical industry practices, and 3-4 programmers.

(Am I getting old? A year ago I would have written "Why don't you just hack it up yourself?" )