If you’re a big business, sometimes that translates to a demanding business. But there is no time to debate about the difference. When you outsource your fulfillment, chances are you need it done on your time. You have no time to wait on that company to get it done when they feel like getting done. Also, when you say fulfillment you mean all fulfillment. Everything that encompasses fulfillment, I’m sure you’d like done promptly. This means keeping track of your inventory, storing it, product assembly, kitting services, and anything else that you might have missed or can’t make a demand for at the very minute.