This guide is for the HTML integration of Smart Checkout. If you feel not confident with it, or before you start a new integration, please get in touch with our friendly help desk:Link
Before you go live a first time or with a new version, you should take these steps:
Make sure you have completed a demo transaction, and all details are proper in SecuOffice.
Find the parameter data-sc-is-demo="true" and change it to data-sc-is-demo="false".