| QR scanning. The user scans a valid QR code after the order creation. | App showcases a checkout screen. | Verify the amount displayed on the checkout screen. |
| Approved payment. The user makes a successful payment. | POS system receives information about the approved payment. | Verify Notifications receipt |
| Rejected payment. The user makes a rejected payment. | POS system receives information about the rejected payment and continues waiting for the order to be paid. | merchant_order status must be opened. |
| Second payment attempt. At first, the user performs a rejected payment and then executes an approved payment. | POS system receives information about the rejected payment and of the approved one later. | Do not remove the order after a rejected payment. |
| Refunds. The payment refund is performed from the Point of Sale. | Refunds impact the buyer account. | See Refunds and cancellations |
| Order expiration. The user attempts to pay after the QR has expired. | The order is deleted; therefore, when scanning the QR, the error screen is displayed. Try to scan the QR after exceeding the expiration_date |