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Omnichannel payment is a solution that integrates multiple payment methods (QR Code, credit card, cash) into a single POS system, helping Vietnamese minimarts increase checkout speed and improve customer experience. According to a Statista 2024 report, 68% of Vietnamese retail customers prefer stores with multiple payment options — this directly impacts revenue and customer return rates.
Problems Minimarts Are Facing

Most Vietnamese retail stores currently accept only 1-2 payment methods (mainly cash + one card type), leading to customers wasting time searching for ATMs, long queues at checkout, and ultimately abandoning purchases. Simultaneously, managing multiple disparate payment types makes it difficult for store owners to control actual cash flow and prone to errors during end-of-day reconciliation.
⚠ Customer purchase refusal — If a store only accepts cash or one card type, customers will go elsewhere. According to a Visa 2023 study, 42% of customers will leave a store if their preferred payment method is unavailable.
⚠ Checkout counter congestion — Each different payment method requires its own processing procedure, slowing down checkout speed and creating a sluggish experience for customers.
⚠ Cash flow management errors — With fragmented payments (cash, bank transfer, card), store owners find it difficult to control actual balances, leading to cash shortages or unexplained surpluses.
⚠ High operating costs — Using multiple standalone devices (card swipe machines, receipt printers, cash counters) increases procurement, maintenance, and staff training costs.
⚠ Lack of integrated sales data — Disconnected payment methods make it difficult to compile sales reports and analyze customer behavior.
How Omnichannel Payment Solutions Work


An integrated omnichannel POS system allows you to configure all payment methods (QR, card, cash) within a single application. Customers select their preferred method, the system automatically processes it, and data is recorded in real-time into your business data warehouse.
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- Customer selects payment method — At the POS screen, staff or customers choose: QR Code, credit/debit card, or cash. The system clearly displays each option.
- Instant transaction processing — For QR or card: the system sends a request to the bank/e-wallet, receiving confirmation within 2-5 seconds. For cash: the amount is recorded, and change is calculated automatically.
- Data warehouse update — Each transaction is saved with a timestamp, payment method, amount, and products sold. Data is synchronized with the inventory management system.
- Invoice generation & cash flow management — Invoices are printed (or sent via email/SMS) automatically. Cash flow is aggregated by method, helping store owners maintain precise control.
- Reporting & analysis — At the end of the day, the system automatically calculates total revenue, analyzes the proportion of each payment method, and suggests business strategies.
Comparison of 3 Popular Payment Methods
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