EHF Post-Award G3 | Rules | EHF-P09-CHA-B18802

Message: Element 'cac:TaxScheme' MUST be provided.
Context: /ubl:OrderChange/cac:AllowanceCharge/cac:TaxCategory
Test: cac:TaxScheme
Usage: / ubl:OrderChange / cac:AllowanceCharge / cac:TaxCategory