# PEPPOL-T58-B00105

Source: https://xmlvalid.com/rules/PEPPOL-T58-B00105

> Element 'cac:SenderParty' MUST be provided.

- Level: error
- Rule sets: Peppol Catalogue Response rules 3.0
- Context: `/ubl:ApplicationResponse`
- Test: `cac:SenderParty`

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