# PEPPOL-T01-B18802

Source: https://xmlvalid.com/rules/PEPPOL-T01-B18802

> Document MUST NOT contain elements not part of the data model.

- Level: error
- Rule sets: Peppol Order rules 3.7
- Context: `/ubl:Order/cac:Delivery/cac:Despatch/*`
- Test: `false()`

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