# F-LIB029

Source: https://xmlvalid.com/rules/F-LIB029

> schemeID attribute must be present on an address ID

- 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:ID and not(cbc:ID/@schemeID)`

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