# PEPPOL-T16-B01901

Source: https://xmlvalid.com/rules/PEPPOL-T16-B01901

> Element 'cac:Party' MUST be provided.

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

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