HR-BR-37
Račun mora sadržavati oznaku operatera (HR-BT-4)
In English The invoice must contain the operator's label (HR-BT-4).
error: the document is invalid
Why it fails
cac:AccountingSupplierParty/cac:SellerContact/cbc:Nameis missing. In the Croatian extensioncac:SellerContactdescribes the operator who issued the invoice, not the seller's general contact (that stays incac:Party/cac:Contact).
How to fix it
Add cbc:Name with the operator's label or name to cac:SellerContact, next to their OIB in cbc:ID (HR-BR-9).
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.
Context
cac:AccountingSupplierParty
Test
cac:SellerContact/cbc:Name
Checked with Croatia eRačun Invoice (UBL), Croatia eRačun Credit Note (UBL)