# F-LIB080

Source: https://xmlvalid.com/rules/F-LIB080

> The EndDate must be greater or equal to the startdate

- 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:StartDate and cbc:EndDate) and not(number(translate(cbc:EndDate, '-', '')) > number(translate(cbc:StartDate, '-', '')) or number(translate(cbc:EndDate, '-', '')) = number(translate(cbc:StartDate, '-', '')))`

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