Implementation licence and DDEX Party Identifiers
Before implementing a DDEX standard you will need to acquire a free standard implementation licence.
As part of the process of issuing an implementation licence, DDEX will also allocate each applicant a DDEX Party Identifier (“DPID”). It is the DDEX Party Identifier that uniquely identifies each sender and receiver of a DDEX formatted message. DDEX Party Identifiers can also be issued separately from the implementation licence for example where a company needs to uniquely identify two departments within the organisation that are sending or receiving DDEX formatted messages. The application form for the implementation licence and DPID is at here and the complete terms of the licence are at here. Also link to relevant part of FAQ!