BT-13

Purchase order reference

BT-13 (Purchase order reference) is a business term of EN 16931, the European e-invoicing standard. This page shows where the field lives in a UBL invoice, how often it may appear and which validation rules check it.

Buyer's purchase order number.

Cardinality: 0..1

UBL element: cac:OrderReference/cbc:ID

Example value: PO-2026-4471

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