Do you know about setting up Paypal for web sites? I'm getting Paypal Invalid message when I return to my web site upon testing the payment process from my web site. I think it's the IPN setup part of Paypal under Selling Prefrences > Instant Payment Notification Preferences > Notification URL and the Website Payment Preferences > Return URL. I'm not sure what exactly these URL's should be. I've asked Paypal but I haven't heard back from them. Can you help me with this? Give me an example possibly of what these URL's should look like? Thanks
when you return to your website? Then the error has nothing to do with IPN. IPN is for communication between paypal server and your website. For IPN you need a script like handleIPN.php to handle the post from paypal website. Please post the exact error message so we can help