Products that you're shipping with Flexport can be added to and reviewed in the Products tab:
To add a product, click Add a Product and fill out the product form with as much detail as possible:
Products imported into the U.S. will require an HTS Code. Note that a Chinese supplier may provide you with an HS Code, but they may provide you with the Chinese variation. You will need to determine the U.S. HTS code.
Or in the shipment details:
Select “Unknown” for Document Type and input “Product List” in the Optional Memo field.