# PEPPOL-T19-B24104

Source: https://xmlvalid.com/rules/PEPPOL-T19-B24104

> Element 'cac:IssuerParty' MUST be provided.

- Level: error
- Rule sets: Peppol Catalogue rules 3.5
- Context: `/ubl:Catalogue/cac:CatalogueLine/cac:Item/cac:Certificate`
- Test: `cac:IssuerParty`

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