How to integrate the QR Attended Model

To charge with a QR Attended Model, you need to create an order and associate it with a Point of Sale.

This is how the attended model works:

1. The store registers a sale (1a) and creates an order assigned to the point of sale (1b). The order is then available for scanning (2).
2. When the customer scans the QR Code (3) and completes the payment (5a), Mercado Pago sends a notification with the topic merchant_order and the status:closed to the seller's server (5b). They must respond a HTTP STATUS 200 (OK) or 201 (CREATED to confirm its reception (5c). Otherwise, Mercado Pago will continue to resend the notification according to our retry logic. If you want more information about this retry logic, go to Notifications.
3. With this information, the seller must confirm if the order status is closed (6a and 6b) and proceed with the ticket printing (7).

For more information on how to create orders access our API Reference.

The order is available for scanning and payment after its creation.

For more information on how to delete the order associated with a QR before its expiration, or closing, see our API Reference.

A notification is an automatic message that notifies the creation of new orders and their status updates. I.e.: If an order is approved, rejected, or pending.

Go to Notifications to learn how to implement them.

More specifically for QR Code, you must activate the merchant_order notifications, which are the ones associated with orders. You will be able to identify each one of theses orders by the external_reference parameter.