Supply comes in many forms; from production, from the supplier, and from co-packers. We plan supply for every hour, every day, every week, once a month or once a quarter/year.
The complexity for supply comes in the variety of it, supply or purchase of Raw Materials is something completely different than the production of Finished Goods. The supply plan is driven by a set of parameters including the minimum amount, fixed multiple, maximum amount, maximum interval, days cover and various time shifts between the different states of the product. Available capacity can be included as a constraint leading to preproduction within the constraint of shelf life.
A multi-layered network of supply (aka replenishment) proposals is calculated real time and the user can adjust proposals with immediate visual feedback on the consequences. The calculation will take the warehouse lots, work in progress and confirmed orders as input and observe shelf life constraints in supply chains with perishable goods. Existing inventory and projected inventory is handled on a FEFO (first expire first out) basis. Products may need to ripen or mature or grow in industries such as wine, cheese, and seeds. The system observes the complete lifecycle from ordering to expiring.