The new possible request error instore_order_locked_error was added to the [Cancel order by ID] (/developers/en/reference/in-person-payments/qr-code/orders/cancel-order/post) endpoint for QR Code. If returned, it indicates that an order cannot be canceled while the payment is in progress, as orders can only be canceled via the API when "status=created".

We have included the expiration_time request parameter in the documentation related to the Mercado Pago Point integration. Sending this parameter will set the expiration period for the order, and if it is not sent, the period will remain up to 15 minutes after its creation.

We have updated the possible errors returned in the Terminals API endpoints, merging the generic "internal_error" codes 424, 502, and 504 into a single "internal_error" 500. In this case, we continue to recommend reviewing the returned message and trying to resend the request.

The new possible request error (invalid_idempotency_key_length) has been included, which can be returned by the Orders API for Checkout API, indicating that the value sent in the "X-Idempotency-Key" header exceeded the maximum allowed length, which is 64 characters.