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2. UBL Invoice
3. ubl:Invoice
4. cac:OrderReference
5. cbc:ID

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

Cardinality

1..1

Namespace

cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2

Data type

Document Reference

Example value

98776

Business terms

BT-13

Rules

Identifier/Error message	Flag
PEPPOL-EN16931-R003 A buyer reference or purchase order reference MUST be provided.	fatal