The {Sales by Item} report can be used to track the sales of any single specific UPC over a given period of time. The can be broken down by employee so you can check on how individuals are doing with specific upsell promotions, or loyalty card sales.

The 'Location' column is driven by the store group of the terminal, so it can either display locations individually or together. When the group group is set to 'All Stores' it will still separate employees by location by default,