Hope you are doing well!
>>Here are your allocated 10 Free UPC codes:-
>>> You need one UPC for one product and it really doesn’t matter how many products you are selling with it. Again for one listing means for one product you need just one UPC.
>>>If you are creating two different listings than you need 2 UPC code but if you list these 2 bottles with different color in one listing than 1 UPC code.