How to make sure when I click ‘Place order’ on WIX provided ecommerce in-built checkout page, the parameters going in correct way to 2checkout ?
Hey
Are you using the Wix Stores?
Yes. I am using wix stores. When i click on checkout button, it leads me to cartscheckout.com page to fill shipping/card details. And I cannot modify or debug anything there using wix editor
Hey
No, there is no way to modify the payment flow in Wix Stores. Sadly but thats the truth.
I know Andreas. But then what should be the solution for it?. Like who to approach for this 
Well you can add a feature request for it at the Wix Stores Support page. I believe that they are working to extend the Wix Stores at all times but I have no idea when this features will come. If you need to modify or handle payment gateways flow I just have no idea to do that at the moment. Except creating your own shop in Wix Code.