Their scale has to be able to print the UPCs for this. And that UPC will have a left set of numbers, that is the actual UPC to indicate which item is being scanned. and the last part of the UPC will be the price of the item that the scale calculates and we would enable weight based UPC and set the UPC for the item to that left part of it that indicates the item UPC so when they scan the item, it'll check for the item UPC first in the first part of the UPC and then it will read the second part as the price and add it to the cart with that price