Electronic Data Interchange (EDI) allows the electronic transfer of data; i.e., without paper. IHT is using this process for digital invoicing, creating a number of benefits for all those who are involved. One of the advantages is the high data transfer rate. Data are transferred almost instantaneously from the suppliers to IHT’s centralised settlement system. Secondly, standardised, automated processes in conjunction with Electronic Data Interchange considerably reduce the risk of errors. Thus, both the trading partners and the suppliers profit from a highly reliable and precise procedure.