E-invoice Sign in Open validatorValidator
Blog Why does my Peppol invoice fail validation? OpenPeppol's own example broken fourteen ways

XV-PL-35

Line numbers repeat (NrWierszaFa or NrWierszaZam); each line has its own number, a line before a correction (StanPrzed) the number of the line it corrects (FA(3) information sheet, NrWierszaFa).

error: the document is invalid

What the rule checks

As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element

KSeF and FA(3) checks KSeF 2.0 invoice verification (9 April 2026), FA(3) information sheet (August 2026)
Context
/fa:Faktura/fa:Fa
Test
count(fa:FaWiersz[not(fa:StanPrzed)]) = count(distinct-values(fa:FaWiersz[not(fa:StanPrzed)]/fa:NrWierszaFa)) and count(fa:FaWiersz[fa:StanPrzed]) = count(distinct-values(fa:FaWiersz[fa:StanPrzed]/fa:NrWierszaFa)) and count(fa:Zamowienie/fa:ZamowienieWiersz[not(fa:StanPrzedZ)]) = count(distinct-values(fa:Zamowienie/fa:ZamowienieWiersz[not(fa:StanPrzedZ)]/fa:NrWierszaZam)) and count(fa:Zamowienie/fa:ZamowienieWiersz[fa:StanPrzedZ]) = count(distinct-values(fa:Zamowienie/fa:ZamowienieWiersz[fa:StanPrzedZ]/fa:NrWierszaZam))

Checked with KSeF FA(3)