W-INV194

The attribute languageID should be used when more than one PriceChangeReason element is present

warning: reported, still valid

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/cac:InvoiceLine/cac:Price/cbc:PriceChangeReason
Test
count(../cbc:PriceChangeReason) > 1 and not(./@languageID)

Checked with Denmark OIOUBL 2.1 Invoice