F-INV018

One TransactionCurrencyTaxAmount element must be present when TaxCurrencyCode element is used

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.

Context
doc:Invoice/cbc:TaxCurrencyCode
Test
count(/*/cac:TaxTotal/cac:TaxSubtotal/cbc:TransactionCurrencyTaxAmount) != 0

Checked with Denmark OIOUBL 2.1 Invoice