I've got two forms on a client's Website, both of which connect to PayPal after processing and sending the client an email. I have one of them working perfectly using the hook "on_sent_ok" in the Additional settings and passing static parameters in the redirect URL.
On the second form, however, I need to pass one parameter that is generated in the form (quantity) along with other static parameters in the redirect URL. Is it possible to pass this parameter in the URL in the Additional Settings box, and if so, how?
Thanks in advance.