# BR-NL-22

Source: https://xmlvalid.com/rules/BR-NL-22

> The use of an invoice note subject code (/rsm:ExchangedDocument/ram:IncludedNote/ram:SubjectCode) is not recommended. If deemed necessary the code shall be agreed upon with the receiving party.

- Level: warning
- Rule sets: NLCIUS rules (CII) 1.0.3.13
- Context: `ram:SubjectCode[$s]`
- Test: `false`

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