How do I send a customer a link to information automatically after they have sent payment via Paypal? Currently its a manual process and its cumbersome. I need to automate this through paypal.
Best way is to use paypal IPN or Express checkout. Once the transaction is complete a response can be send from paypal back to a script on your web server. Your script would need to be configured to send the data that you need it to. Here's a good place to start: https://www.paypal.com/developer Personally, I like Express checkout a lot more, but IPN should do what you need as well.
I have used paypal IPN for a couple of years and have had no problems. You can log into your PayPal account, click on the Profile Tab. Under Selling Perferences, click on Instant Payment Notification Preferences to set it up.
You have to integrate paypal to your website to do so. You should know basic webdesign concepts for that
IPN is the way to go. You could opt to do the scripting yourself or use one of the existing shopping cart scripts which comes with the integration for you. Although it may seems more convenient to do automated processing, the core disadvantage is that you cannot manually vet the transactions and would have a higher probability of encountering frauds.
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