Suma Systems Keeps the Checkout Running Offline

Field notes

The system places its working database on a Windows PC rather than requiring every transaction to reach a cloud service. It describes local synchronization between registers, later cloud backup, and a separate self-checkout screen that uses the same prices, stock, and receipts. The stated hardware setup is a Windows computer, barcode scanner, and receipt printer, with a card reader supplied through the store’s own processor. The page also describes per-customer credit ledgers and cashier-level records for sales, refunds, and price changes.