# F-LIB107

Source: https://xmlvalid.com/rules/F-LIB107

> PaymentMeansCode = 31, ID element is mandatory

- 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 = '31') and not(cac:PayeeFinancialAccount/cbc:ID)`

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