Message

Value MUST be part of code list 'Currency codes (ISO 4217)'.

Context
/ubl:OrderResponse/cac:TaxTotal/cbc:TaxAmount
Test
not(@currencyID) or (some $code in $clISO4217 satisfies $code = @currencyID)
Code lists
Currency codes (ISO 4217)
Usage
/ ubl:OrderResponse / cac:TaxTotal / cbc:TaxAmount / @currencyID