I’ve never figured out what they’re actually looking for on the receipt. A code, an item over a certain dollar amount?
They do this at Costco, but they do it so fast and our cart is always so full of stuff, I don’t see how they can tell anything.
They're looking to make sure it's an actual Walmart receipt and that the customer didn't walk in with a piece of paper, pick up some items and walk out.
They often check the date, time, and store. Just like scenario above, they want to make sure someone didn't shop on one day at one store, come back a few days later at another store, pick up some items, and walk out.
They usually mark the receipt with a highlighter or marker to prevent someone from using the receipt again.
One of the big things they are checking is that any expensive items are on the receipt. One method of theft is to work with the cashier and ring up a cheap item instead of the big one. If they see a cheap knick-knack instead of a $500 TV you have in the cart, they might have a “little chat” with your cashier about employment elsewhere.
They randomly scan 5 items to see if they show up on the receipt at Costco. If they do, they way you on.