Electronic Invoicing has for over a decade promised to deliver a fundamental change in the way accounts payable operates. "We will be able to eliminate the non-value add activities."; "AP will move from being a cost centre to a profit centre."; "It will evolve from an administration function to a strategic commercial operation." Promises all made in good faith but promises that were not delivered. The challenges of the numerous tax and legal regulations across the world as well as the reluctance of suppliers to play ball have both been significant blockers. But there's another blocker: e-invoicing doesn't make sense.