Point of Sale
The till a cashier actually uses for in-person sales — reading from the same catalog and stock as everything else, so a sale here and an online order never disagree about what's in stock.
Open a POS session with an opening float, and close it with a counted total — the system tracks the expected closing amount against what was actually counted.
Look products up by barcode at the register.
Take payment across multiple tenders in one sale — cash, card, M-Pesa — each recorded as its own transaction.
Every sale becomes a real Sale record with its own receipt number, independent of whether it came from a walk-in customer or an online Order being fulfilled in person.
See also: Orders & POS API reference.