Our intelligent IPN processor has a built-in DEBUGGER in the form of an audit trail that makes implementing IPN a breeze. It logs each crucial action of your IPN events in text file that you can later review via your browser using a utility that we also provide. The IPN idea is easy and simple, but when you start adding functions to it like manipulating databases, generating an email notification and those kind of stuff, that is when potential errors could invalidate your whole ipn. Our utility WILL PINPOINT and SHOW YOU EXACTLY WHERE THAT ERROR OCCURED in your program so you won't have to spend countless hours debugging something that you couldn't see. Remember, ALL IPN implementations do not display any visible output on your browser! They all happen in the background.