Hello,

This is a rather old thread, but since I have answers...

See answers in red below:


Code:
1) Back URL from the PostFinance checkout to my shop:
   success URL:  
      your_shop_url /index.php?main_page=checkout_success&step=ok
   failed URL:     
      your_shop_url /index.php?main_page=checkout_confirmation&step=fail
   cancel URL:   
      your_shop_url /index.php?main_page=checkout_confirmation&step=back

2) How would you like to get the parameter return? http-post

   http-post to the URL :  
      your_shop_url /index.php?main_page=checkout_process&step=process