Photo appears courtesy of JD Hancock. I would have to say implementing and running a successful EDI system is 35% exceptional EDI software, 55% experienced EDI consultants and 10% good old fashioned luck. So what can happen when you DON'T have the luck o' the Irish? Bad things, very bad things. Here's a list of some of those nightmares. Watch out for those leprechauns - they can be very mischievous!