7.2 Communicating a PieMessage as part of an ERN Feed

Release Creators send NewReleaseMessages to Release Distributors. As part of such a fee, one or more separate XML document(s) containing exactly one PieMessage in accordance with Clause 9 of this standard can be sent alongside a NewReleaseMessage.

DDEX has not defined a mechanism by which a PieMessage can be communicated alongside an ERN-3 message (which does not have a SupplementalDocumentList element). The preferred approach is to send the PieMessage as a Text Resource with a user-defined TextType of  PieMessage.

The XML document containing the PieMessage shall be treated in accordance with the relevant ERN Choreography as if it were a Resource file. It shall, however, be referenced in the SupplementalDocumentList composite in the NewReleaseMessage instead of in the TechnicalDetails composite. Any document referenced in the PieMessage shall also be treated as if it were a Resource file to the NewReleaseMessage.

The information in the PieMessage shall only contain information relevant to the Parties referenced in the NewReleaseMessage to which the PieMessage is attached.