- The returnUrl is provided by merchants, and PMS will redirect to the "returnUrl"
provided by merchants when payment success or failure. (DO NOT guarantee page
redirect success. That is why merchants are highly recommended to take use of
"webhookUrl").
- If returnUrl is empty. It will redirect to default PMS result page
- eg: redirecting to the following page with QUERY PARAMETER after paid success.
https://www.xxxx.com/checkout-2/order-paid/648?rrn=xxxxxx&txDatetime=xxx
xxx&...