# F-INV002

Source: https://xmlvalid.com/rules/F-INV002

> There must be an OrderReference class for this profileID

- Level: error
- Rule sets: OIOUBL 2.1 Invoice rules (Denmark) 1.17.2
- Context: `doc:Invoice`
- Test: `$Simple and not(cac:OrderReference)`

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