Walmart receipt codes include various information about your transaction, such as product details, pricing, and identifiers. The specific meanings of these codes can vary, but some common ones are: UPC: Universal Product Code, a barcode used to identify the product. SKU: Stock Keeping Unit, a unique identifier for each product. PLU: Price Look-Up code, used for items sold by weight, such as produce. TC: Transaction Code, a unique identifier for each transaction. POS: Point of Sale, indicating the location where the transaction took place. Tax Codes: Indicate the tax rates and types applied to the purchase. Please note that the meanings of these codes may change over time, and Walmart's specific codes may differ. If you have specific concerns or questions about the codes on your receipt, contact Walmart customer support for clarification.