Namespace
cac urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2
Child elements
Card Name Description
1..1 cbc:ID

Purchase order reference
Peppol: An identifier of a referenced purchase order, issued by the Buyer.An invoice must have buyer reference (BT-10) or purchase order reference.

Example value: 98776

0..1 cbc:SalesOrderID

Sales order reference
Peppol: An identifier of a referenced sales order, issued by the Seller.

Example value: 112233