PEPPOL-EN16931-R003 - A buyer reference or a purchase order reference is required
The document must let the buyer match it with its own records: at least one of the buyer reference (BT-10) or the purchase order reference (BT-13) has to be present.
PEPPOL-EN16931-R003 - A buyer reference or a purchase order reference is required
The document must let the buyer match it with its own records: at least one of the buyer reference (BT-10) or the purchase order reference (BT-13) has to be present. This is a Peppol BIS Billing 3.0 rule. It applies on top of the EN 16931 core standard, on invoices exchanged over the Peppol network.
What this rule checks
The document must let the buyer match it with its own records: at least one of the buyer reference (BT-10) or the purchase order reference (BT-13) has to be present.
How to fix it
Add cbc:BuyerReference at document level, or add cac:OrderReference/cbc:ID with the purchase order number.
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
Source: OpenPeppol BIS Billing 3.0 · Last verified: 2026-07-10
All validation rules