EDI is tool which is available for every business it will increases efficiency and productivity and replace process of preparing data in paper and send it via mail or fax. • How it works: To transmit any data between any two companies there are so many ways for it. And one of it is VAN it allows companies transmission and it will review by the VAN and then send proper recipient. In Today’s EDI uses a new method for transmission and that is AS2(Applicability Statement 2).