# F-CRN004

Source: https://xmlvalid.com/rules/F-CRN004

> Invalid DocumentCurrencyCode. Must contain a value

- Level: error
- Rule sets: OIOUBL 2.1 Credit Note rules (Denmark) 1.17.2
- Context: `doc:CreditNote`
- Test: `cbc:DocumentCurrencyCode != ''`

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