ItemMessageHeader
From imde.io
ItemMessageHeader is mandotary for every message and contains all identification and classification datapoints.
- Parties {one or more parties, with ID and name}
- PartyType {Datasender, Datarecipient, Informationprovider}
- PartyIdentifierType {GLN, DataSenderPartyIDs, DataReceiverPartyIDs}
- PartyName
