# PEPPOL-T58-B02701

Source: https://xmlvalid.com/rules/PEPPOL-T58-B02701

> Element 'cbc:ID' MUST be provided.

- Level: error
- Rule sets: Peppol Catalogue Response rules 3.0
- Context: `/ubl:ApplicationResponse/cac:DocumentResponse/cac:DocumentReference`
- Test: `cbc:ID`

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