If you plan your product by product or date with care and accuracy, you can enjoy added savings. Thoughtful plans replace cash and expense. This amazingly reduces the high cost of storage and productions well as tying up money in materials inventory. The key here is to work closely with a good supplier who can deliver proper amounts at precisely scheduled times. Suppliers too are watching their inventory.
Quality control is a vital part of production planning.
First, have detailed and accurate knowledge of product specifications. Second, be sure that procedures produce to those specs exactly. Make small test runs if this is practical. Third, Review customer complaints and returned product to identify needed corrections. Fifth, make extra efforts to prevent flaws from the occurring.