Why doesn't the HS code print even though I checked "Print HS Code"? Where do I fill it in?

1. First verify whether the item has the HS code filled in. The three items in this shipping document have not been filled in yet, so even if "Print HS Code" is checked, the code will not print, and a yellow warning will appear on the screen. 2. Find the item that needs data completion through the left "Shipping Items", click the "Edit..." button on that row, and fill in the "HS Code Number" and "HS Code Description". 3. After completing the data, open "Report" again and confirm that "Print HS Code" is checked.