BT-13 - Purchase order reference
An identifier of the purchase order issued by the buyer. It allows the invoice to be matched with the corresponding order.
BT-13 - Purchase order reference
An identifier of the purchase order issued by the buyer. It allows the invoice to be matched with the corresponding order.
Definition
An identifier of the purchase order issued by the buyer. It allows the invoice to be matched with the corresponding order.
Syntax mapping
Where this term appears in each of the three EN 16931 syntaxes.
| Syntax | Path |
|---|---|
| UBL 2.1 | cac:OrderReference/cbc:ID |
| UN/CEFACT CII | rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:BuyerOrderReferencedDocument/ram:IssuerAssignedID |
| Factur-X / ZUGFeRD | Factur-X profile: MINIMUM |
The lowest Factur-X / ZUGFeRD profile in which this term is available.
Validate an invoice carrying this term
This term is defined by EN 16931. Check your invoice with the validator that matches your format:
Related terms
Source: EN 16931 semantic model. UBL paths checked against the official OASIS UBL 2.1 schema; rule links from the EN 16931 validation artefacts (EUPL 1.2, release 1.3.16) · Last verified: 2026-07-15
Not verified against: CEN/TS 16931-3-2 (UBL) and -3-3 (CII), the authoritative syntax bindings: paid specifications, not consulted
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