# PEPPOL-T16-B18003

Source: https://xmlvalid.com/rules/PEPPOL-T16-B18003

> Element 'cac:OrderLineReference' MUST be provided.

- Level: error
- Rule sets: Peppol Despatch Advice rules 3.5
- Context: `/ubl:DespatchAdvice/cac:DespatchLine`
- Test: `cac:OrderLineReference`

Validate a document against these rules: https://xmlvalid.com/validate