Tracking inventory is an important part of doing business. It is the means by which companies remain stocked with all of the essential goods they need to sell to customers and complete daily operations. When products are sold, they must be replenished at a rate that finds a healthy balance between the extremes of overstocks and stock outs.
Supply and demand aren’t constant. They often change with the season and over the course of a product’s life cycle. There’s also the problem of keeping track of inventory with different units of measure and suppliers in various countries with their own distinct tax rates and laws.