- On the POS screen click «🟢 Open shift» and enter the cash float;
- Scan barcodes, or type name/code, or press F4 for the product list;
- Customer: type name/NIF/phone/card number in the customer field (or F4); members get auto discount;
- Change quantities, remove lines with ✕;
- «💳 Confirm payment» → check the total and method (cash/transfer/card/mixed) → «✅ Confirm»;
- The receipt prints automatically; for invoice/receipt switch the document type before paying and fill in the customer NIF.
💡 Shortcuts: F4 lists · C cash T transfer B card M mixed
💡 Customer wants to add more: «⏸️ Suspend» the sale, serve others, then «🧾 Suspended → Resume».