PEPPOL-EN16931-R003
Add a buyer or purchase order reference
ErrorPeppol BIS 3.0BT-10BT-13
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What it means
The invoice must contain either a buyer reference or a purchase order reference. Neither has been supplied.
Typical causes
- The customer’s reference was not entered.
- The purchase order number appears only on the PDF.
How to fix it
- Ask the customer which reference to use.
- Enter it in the buyer reference or purchase order reference field.
- Check that it is included in the electronic invoice.
See it in action
These sample invoices break this rule. Open one to see the exact line.
What the rule says (technical)
A buyer reference or purchase order reference MUST be provided.
Add cbc:BuyerReference (the reference your customer gave you, e.g. a cost centre or Leitweg-ID) or cac:OrderReference/cbc:ID.