# XV-PL-32

Source: https://xmlvalid.com/rules/XV-PL-32

> The period of the invoice ends (P_6_Do …) before it starts (P_6_Od …) (FA(3) information sheet, OkresFa).

- Level: error
- Rule sets: KSeF and FA(3) checks KSeF 2.0 invoice verification (9 April 2026), FA(3) information sheet (August 2026)
- Context: `/fa:Faktura/fa:Fa/fa:OkresFa`
- Test: `not(fa:P_6_Od castable as xs:date and fa:P_6_Do castable as xs:date) or xs:date(fa:P_6_Od) le xs:date(fa:P_6_Do)`

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