Peppol BIS Billing 3.0 · rule

UBL-CR-405

Layer en16931·Checked against Peppol BIS Billing 3.0 2026.5

What does UBL-CR-405 mean? A UBL invoice should not include the Delivery Despatch

Why did my invoice fail UBL-CR-405?

The UBL element cac:Delivery/cac:Despatch should not be used in an EN 16931 invoice. Despatch details beyond the despatch advice reference (BT-16, carried in cac:DespatchDocumentReference at document level) are outside the core model.

Official rule text

A UBL invoice should not include the Delivery Despatch

Common causes

Mapping the despatch advice reference into cac:Delivery/cac:Despatch instead of cac:DespatchDocumentReference
Reusing a despatch advice UBL structure

How do I fix it?

<cac:DespatchDocumentReference>
  <cbc:ID>DESP-2026-0042</cbc:ID>
</cac:DespatchDocumentReference>

Check your invoice against this rule

Paste it into the live demo, or call POST /v1/validate. See the quickstart.