Card, cash or both: how does payment change the entire self-service project? — Part 1

When a kiosk with card payment and cash payment at the counter is perfectly sufficient This is the first of two parts dedicated to payments in self-service systems. Here we examine the most practical model for a large number of establishments. In the second part, we will discuss cases where the kiosk itself needs to accept cash, and specialized cash management systems. When a conversation about a self-service solution begins, the payment method often remains among the last questions. First, the device, screen, software, and functions are discussed. Only then does the topic arise: "Will it be paid by card, in cash, or both?" In reality, this choice should be made at the very beginning. It affects the construction and cost of the kiosk, its daily maintenance, the organization of the establishment, and how the customer goes through the entire process. There is an important distinction here. A kiosk without a built-in banknote and coin device does not necessarily mean that the customer cannot pay in cash. In the vast majority of cases, a perfectly sufficient solution is for the device to accept card payments and offer the option "Pay in cash at the counter." How does this model work? The customer selects products, quantities, and add-ons on the self-service device. After confirming the order, they can pay by card directly at the kiosk or choose to pay in cash at the counter. In the latter case, the order has already been created in the system and receives a number or code. At the counter, the employee does not have to ask the customer again what they chose and enter all the information. They retrieve the prepared order, accept the amount, and confirm the payment. This automates one of the slowest and riskiest parts of the process — taking and entering the order. The cashier doesn't have to remember complex combinations, clarify every add-on, or re-enter the customer's selection. There's also a benefit for accountability. The order exists in the system before the money is accepted. This makes the process more traceable and limits the possibility of it being missed, changed, or processed outside the established procedure. With a properly designed system, this reduces both unintentional errors and the risk of certain abuses. Why is this sufficient for many establishments? The main strength of the model is that it gives the customer choice without adding unnecessary complexity to each kiosk. People who prefer card payments complete the entire process at the device. Customers who want to pay in cash use the same interface for the order and only visit the counter for payment. This allows businesses to retain cash as an option without equipping every kiosk with a banknote acceptor, coin module, and change dispensing mechanism. These components increase investment and require loading, cash collection, and maintenance. This is precisely why a similar model is also found in large chains that have the ability to invest in more complex devices. Often, it's a conscious choice not to add cost and operational complexity where a similar result can be achieved with a simpler process. For many restaurants, shops, and service establishments, this is a reasonable balance between customer convenience, investment, and daily operation. How does the cashier's role change? This model does not eliminate the counter. It changes its role. Instead of the employee accepting, clarifying, entering, and charging for every order, they focus on cash payments and situations where the customer needs assistance. The goal is not always to completely eliminate the cashier. In many establishments, greater value comes from reducing repetitive tasks and making better use of staff time. Automation in this case does not eliminate the human element. It distributes the work more reasonably among the customer, the system, and the employee. The customer needs to understand what comes next. After selecting "Pay cash at counter," the interface should clearly show where the customer needs to go, how the order will be found, and whether they need to show a number, code, or printout. It should also be clear when the order is sent for fulfillment — immediately after creation or only after confirmed payment. The same applies to card transactions. In case of a successful, declined, or interrupted payment, the system must provide unambiguous feedback. When it comes to money, any unclear message creates doubt. A good payment experience is not just fast. It is clear, predictable, and builds trust. When is this model not enough? A kiosk with card payment and an option for cash payment at the counter is sufficient for the vast majority of standard establishments. However, there are situations where physical cash acceptance must be part of the device itself. This applies mainly to remote and isolated locations, establishments without permanent staff presence, 24/7 services, and processes that need to be completed entirely independently. There is also another need. When the goal is stricter cash control, reducing till errors, limiting abuses, or protecting money from theft, specialized cash handling devices come to the rescue. These are different tasks and should not automatically be solved with the same configuration. At SelfService.bg, we try to view products through the eyes of the people who will use and manage them. It is not enough for a device to offer more features. It must be adequate for the real process and not create unnecessary cost and complexity. Continue to Part 2: "When should the kiosk accept cash, and when is a specialized solution necessary?"

Card, cash or both: how does payment change the entire self-service project? — Part 1

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