EHF Post-Award G3 | Rules | EHF-P09-CHA-B06901

Message: Element 'cbc:EndpointID' MUST be provided.
Context: /ubl:OrderChange/cac:SellerSupplierParty/cac:Party
Test: cbc:EndpointID
Usage: / ubl:OrderChange / cac:SellerSupplierParty / cac:Party