# PEPPOL-T115-B00106

Source: https://xmlvalid.com/rules/PEPPOL-T115-B00106

> Element 'cac:OrderReference' MUST be provided.

- Level: error
- Rule sets: Peppol Order Cancellation rules 3.0
- Context: `/ubl:OrderCancellation`
- Test: `cac:OrderReference`

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