I’ve been in the parts business for 17 years, mostly on the dealership side of the business. I’ve found that the same practices used on the dealership side also work in the independent world. With a little effort and some help from a computer, it is fairly simple to track purchases and stock based on sales figures. I use my system to track my purchases and produce reports of part numbers that match my criteria. Although there is a lot of manual work involved in setting min/max on each part number, once finished, you will find a lot of your headaches have disappeared. No more wondering why you have 50 oil filters for an engine or make that never comes into your shop.
Japanese Motor Works