# MD for: https://www.mercadopago.com.uy/developers/pt/docs/qr-code-legacy/integration-configuration/qr-dynamic/advanced-integration.md

\# Advanced Integration ## Refunds Refunds apply when the payment is canceled totally or partially by the seller. You can find information in the \[Refunds and cancellations\](https://www.mercadopago.com.uy/developers/en/docs/qr-code/additional-content/cancellations-and-refunds) section. > WARNING > > Note > > Remember that for in-store payments, only refunds are available, cancellations are not allowed. ## Obtain order data If you want to obtain the current order data of a POS, use the curl that you will find in our \*\*API Reference\*\* by accessing \[Get order\](https://www.mercadopago.com.uy/developers/en/reference/instore\_orders/\_instore\_qr\_seller\_collectors\_user\_id\_pos\_external\_pos\_id\_orders/get), where you can also find detailed information about the request and response parameters. ## Generate sales reports Integrate the \[Mercado Pago reconciliation reports\](https://www.mercadopago.com.uy/developers/en/guides/additional-content/reports/general-considerations/reconciliation-reports) with your system to reconcile your sales and view your account movements.