After displaying the payment QR code, the merchant can initiate a transaction result query to confirm whether the QR code has been paid. Note: Query platform repayment order information based on the message number and original message number. The message number msgId is the request message number that initiated the query, and the original message number originalMsgId is the request message number of the repayment transaction that needs to be queried, both of which are generated by the merchant system.