# F-LIB311

Source: https://xmlvalid.com/rules/F-LIB311

> FinancialInstitutionBranch/ID (Registreringsnummer) must contain a numerical value

- Level: error
- Rule sets: OIOUBL 2.1 Invoice rules (Denmark) 1.17.2, OIOUBL 2.1 Credit Note rules (Denmark) 1.17.2, OIOUBL 2.1 Reminder rules (Denmark) 1.17.2
- Test: `(cbc:PaymentMeansCode = '42') and not(number(cac:PayeeFinancialAccount/cac:FinancialInstitutionBranch/cbc:ID))`

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