# Understand the Register Layout

- **Customer area:** Search, select, or keep the Walk-In Customer.
- **Sale/Refund switch:** Determines whether newly added lines are sales or returns.
- **Product entry:** Search by name or scan an IMEI, serial number, UPC/barcode, or SKU.
- **Cart:** Review item name, quantity, price, discount, and tax.
- **Notes:** Add receipt notes, customer notes, or a reference number.
- **Totals:** Review subtotal, discount, tax, surcharge when applicable, and amount due.
- **Actions:** Hold the cart, cancel it, or continue to checkout.