# F-LIB090

Source: https://xmlvalid.com/rules/F-LIB090

> Invalid CalculationRate. Must have 4 decimals

- 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:CalculationRate and string-length(substring-after(cbc:CalculationRate, '.')) != 4`

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