BR-64
The Item standard identifier (BT-157) shall have a Scheme identifier.
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.
cac:InvoiceLine/cac:Item/cac:StandardItemIdentification/cbc:ID | cac:CreditNoteLine/cac:Item/cac:StandardItemIdentification/cbc:ID
exists(@schemeID)
Checked with EN 16931 Invoice (UBL), EN 16931 Credit Note (UBL), Croatia eRačun Invoice (UBL), Croatia eRačun Credit Note (UBL)
//ram:IncludedSupplyChainTradeLineItem
normalize-space(ram:SpecifiedTradeProduct/ram:GlobalID/@schemeID) != '' or not (ram:SpecifiedTradeProduct/ram:GlobalID)
Checked with EN 16931 Invoice (CII)
//ram:IncludedSupplyChainTradeLineItem
ram:SpecifiedTradeProduct/ram:GlobalID/@schemeID!='' or not (ram:SpecifiedTradeProduct/ram:GlobalID)
Checked with France Factur-X EN 16931, Factur-X / ZUGFeRD EN 16931