Till
Cashier work in a shop and a restaurant
The till is the workplace where an order is created and paid for. The cashier sees the storefront or the menu, builds the order, takes payment and prints the receipt.
Payments made in the customer app are not counted again at the till: they are already accounted for and shown as paid. The shift is closed in the cabinet, after which the amounts are fixed and go into the report.
The set of services and the prices are defined by the network operating in your city: some services may be unavailable and the options may differ.