VDA standards have been defined for a large number of different processes including inquiries, offers, delivery call-offs, delivery notifications, incoming messages, outgoing messages, dispatch data and other data transmissions. Each VDA message standard has a unique identification number with four digits. The file format 4905, for example, is a delivery forecast.
Among the best known standards are VDA 4906 (remote data transmission of invoices) and VDA 4908 (remote data transmission of credit notes). However, the use of these two standards is not recommended due to their age. Instead, the e-invoice standard VDA 4938 should be used. By developing VDA 4938, invoices and credit notes follow a uniform structure. Using VDA 4938 also referred to the requirements of applicable legal and tax requirements.