Solution : https://service.sap.com/sap/support/notes/1422646 (SAP Service marketplace login required)
Key words :
exchange rate difference line taxes, system issues error message fs 214 ', exchange rate difference line, terms tax information fields, additional cash discount line, alternative tax rate, system automatically generates, bseg-ktosl = kdt, valid tax code', cash discount account
Related Notes :
1439103 | Use tax rate for cash discount adjustment of tax for payment |