My work on this project was focused on UI but my main contribution was to help to improve the business.
People were looking for on these screens a code that matches the products they are looking for to classify and answer government in their country to the corresponding tax for these products. Otherwise, probably they must pay more.
I have improved with a lot of studies and final design this way to find those codes. I create a way to the screen to be "smart" and indicate what is the probable code the user must choose.