Walmart has done this in at least one of our stores when an employee innocently let them away with it. They scan the product and then key in the price. What I don't know is whether they get extra information such as how many of the product is on hand, expiry dates or any other details which they might use to learn more about, say how much you might sell in a given week which in turn they can use to target specific products to impact the competition.
I hate to compete with Walmart and we would normally ask them to leave but I must give them full credit for their innovation and use of technology.
"I hate to compete."
There, I fixed it for you.
I feel for you. Perhaps we can put you in charge of the official state run store when we get it in place.
"What I don't know is whether they get extra information such as how many of the product is on hand, expiry dates or any other details which they might use to learn more about, say how much you might sell in a given week which in turn they can use to target specific products to impact the competition."
Unless you give them access to your store's database, there is no way they can know how much stock you have on hand, unless you let them into the backroom to count boxes. How much you sell in a given week is not stored on a shelf's barcode...but in your store's computer system.