I've to create my form so I followed the "Third-Party Shopping Carts ”“ The Cart Upload Command" guide wich said to use "_cart" as cmd value. I tried but only got an "empty shopping cart" error. Googling around I found that with "_xclick" in place of "_cart" it might have been working and in fact it almost worked, but as I said above the only thing it seems to reach the page is the shipping fee. Here's the generated html code (omitted opening tags "<" to make it visible): form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post" target="_blank"> input type="hidden" name="cmd" value="_xclick" />
Thanks for your help~~
Thanks for your help~~