Prerequisites
Verify that these UDCs are set up:
- ARG - VAT Withholding Concept (76/02). 
- ARG - VAT Legal Concept (76/L1). 
- Calculation Basis VAT WH (76A/CV) 
Verify that these UDCs are set up:
ARG - VAT Withholding Concept (76/02).
ARG - VAT Legal Concept (76/L1).
Calculation Basis VAT WH (76A/CV)