/ubl:Invoice/cac:OrderReference/cbc:ID
Order Reference Number
| Context ID | INV0163 |
| Cardinality | 1..1 |
| Usage | M |
Description
An identifier for this order reference, assigned by the buyer.
An identifier of a referenced purchase order, issued by the Buyer.
In Peppol BIS Billing 3.0 the purchase order reference is conditional mandatory. If an order reference exists, use that, else provide the buyer reference [IBT-013] /Invoice/cbc:BuyerReference.