When a tech company decides to launch a brand new, first-of-its-kind tech product, it can be hard to know how many you need to order. Order too few, and you may have to resort to more expensive manufacturing or shipping options to keep up with demand. Order too many, and you’ve just got a lot of wasted inventory on your shelves that you’ll never sell at full price. Either way: Getting your product lifecycle forecast wrong can be an expensive mistake.