确定提供给客户以完成销售订单的产品/服务的数量或规模。检查存储在仓库中的成品、生产能力和（在服务的情况下）处理速度，以及劳动力可用性。 Ascertaining the volume or scale of products/services to provide to customers to fulfill sales orders. Check the finished products stored in warehouses, the production capacity, and (in the case of services) the processing speed, as well as work force availability.