`PEPPOL-EN16931-R003`

Peppol BIS Billing 3 · validation rule

Peppol BIS Billing 3Error

Peppol requires a buyer reference (BT-10) or a purchase order reference (BT-13). The sender must fill cbc:BuyerReference or cac:OrderReference/cbc:ID with the reference the buyer supplied.

Field: document.buyer_reference (BT-10) / document.order_reference (BT-13)
Rule set: Peppol BIS Billing 3
Rule-set version: Peppol BIS Billing 3.0 (rules master, Sep 2026) · in force since 2026-09-07 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Worked example · UBL

Peppol BIS 3 insists on one of two anchors for the buyer's AP: a buyer reference (BT-10) or a purchase order id (BT-13).

Fails this rule

<!-- neither cbc:BuyerReference nor cac:OrderReference/cbc:ID in the document -->

Passes

<cbc:BuyerReference>0150abc</cbc:BuyerReference>

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/PEPPOL-EN16931-R003?lang=en