Solution : https://service.sap.com/sap/support/notes/706542 (SAP Service marketplace login required)
Key words :
sd tax code disappears, sd tax code, reference billing document, tax calculation, credit memo, credit memos, terms argentina, vat perceptions, gi perceptions, prerequisites relevant
Related Notes :
687304 | Argentina : Tax code is not taken from condition record |
506672 | Argentina VAT and GI Perceptions in Release 4.7 |