# NL-R-009

> For suppliers in the Netherlands, if an order line reference (cac:OrderLineReference/cbc:LineID) is used, there must be an order reference on the document level (cac:OrderReference/cbc:ID)

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/nl-r-009

## Official rule text

For suppliers in the Netherlands, if an order line reference (cac:OrderLineReference/cbc:LineID) is used, there must be an order reference on the document level (cac:OrderReference/cbc:ID)