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

XV-PL-17

StanPrzed belongs to a correction of an invoice or a final invoice (KOR, KOR_ROZ), StanPrzedZ and KursWalutyZK to a correction of an advance invoice (KOR_ZAL), and P_15ZK to a correction of an advance or final invoice (KOR_ZAL, KOR_ROZ); this one is … (FA(3) information sheet, StanPrzed, P_15ZK).

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
($kind = ('KOR', 'KOR_ROZ') or not(fa:FaWiersz/fa:StanPrzed)) and ($kind = 'KOR_ZAL' or not(fa:Zamowienie/fa:ZamowienieWiersz/fa:StanPrzedZ | fa:KursWalutyZK)) and ($kind = ('KOR_ZAL', 'KOR_ROZ') or not(fa:P_15ZK))

Checked with KSeF FA(3)