Those codes are for Walmart’s internal use, and customers can safely ignore them. TE# is the unique serial number identifying the cash register terminal.OP# is the number assigned to the cashier who checked you out.Each code begins with 2 letters and a hash sign, followed by a number. Underneath the Walmart logo at the top of your receipt, you’ll see the store telephone number, address, and manager’s name, followed by 4 codes. Understanding Walmart Codes At The Top Of Your Receipt
