fatalEN 16931syntax binding ruleCII
IssuerTradeParty should not be present
'…ReferencedDocument/IssuerTradeParty' wherever it appears is present, but this profile does not allow it — nothing in the EN 16931 semantic model maps to it. The rule text names only 'IssuerTradeParty'; the path above is where the rule actually looks.
Remove '…ReferencedDocument/IssuerTradeParty' wherever it appears. It is almost always left over from a generic template or a library that emits every field of the underlying schema. Reported as an error.
CII — context //ram:*[ends-with(name(), 'ReferencedDocument')]
not(ram:IssuerTradeParty)
Nothing is stored, and the whole invoice is checked, not just this rule. A PDF only works if it is Factur-X / ZUGFeRD — a PDF with the invoice XML inside it.