Create sell orders and follow them through fulfillment: query their state, request their cancellation, release orders on hold, add value added services (VAS) to B2B orders and download their delivery documents. There are two kinds of sell order, and the request body of Create sell order decides which one you create: Each endpoint documents its exact fields and validations. The states an order goes through are listed in Sell order states, and warehouse and shipping method codes in Reference data.