# PEPPOL-T16-B18301

Source: https://xmlvalid.com/rules/PEPPOL-T16-B18301

> Attribute 'unitCode' MUST be present.

- Level: error
- Rule sets: Peppol Despatch Advice rules 3.5
- Context: `/ubl:DespatchAdvice/cac:DespatchLine/cbc:DeliveredQuantity`
- Test: `@unitCode`

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