Australia (Peppol): Order Reference
You can specify an order reference at the Document level.
In Australian invoices, if the Buyer Reference is not provided in /Invoice/BuyerReference, the Order Number is mandatory and must be transmitted in the element /ID.
Example
<Invoice>
<!-- code omitted for clarity -->
<cac:OrderReference>
<ID>PO-11223344</ID>
</cac:OrderReference>
<!-- code omitted for clarity -->
</Invoice>
Updated about 15 hours ago
