Fulfillment referers to picking, packing, and shipping products to be sent to another destination. Included with fulfillment: - Packing products for safe shipping to their destination; - Applying up to 2 customer-provided labels to each package; - Applying up to 1 customer-provided paper insert; - Nothing that requires opening or modifying an actual product. For example, if a customer wants us to send out 100 coffee mugs, and each mug is already individually bubblewrapped or boxed, then it's Fulfillment. If they need us to perform the bubble wrapping or whatever *before* it can be shipped, then it is Prep. The reason for this is that customers are *supposed* to provide Prep instructions we're able to carry out during (or shorlty after) the receiving process. They are not supposed to wait until they want to ship the products.