Merchants using FlavorCloud need to classify their products using HS codes as this information is required by customs for document and duty tariffs calculation purposes. As a best practice, each product you sell through your online store should be mapped to an HS code. You typically do this once when you add a product or SKU to your online store (unless the product itself changes over time in which case you may have to update the HS code as well). For each product you are selling online you need to add the first 6 digits of the HS code into your e-commerce platform. At checkout, FlavorCloud will take the product and HS code information and identify the best carrier and the appropriate customs fees and duty taxes.