Service product is a kind of CJ fulfillment service which allows you can ship your own products to our warehouse and we pack and ship for you. When you have some orders, you can directly place orders to our system and we will ship them from our warehouse. We only charge some service fees. How do these steps work in CJDropshipping? We can be your Fulfillment Center both in China and the USA.
Check detail here: https://cjdropshipping.com/2018/03/28/cjdropshipping-service-fee/
How to use CJ Fulfillment Service: https://cjdropshipping.com/2019/07/30/how-to-use-cj-fulfillment-service/