Solution : https://service.sap.com/sap/support/notes/1176307 (SAP Service marketplace login required)
Key words :
error message ff 762, terms ff 762, billing document, condition type, fi_tax_get_condition reason, implemented note 938458, billing documents, condition types, table a003, correction instruction
Related Notes :
| 938458 | FF804: KNUMH in BSET empty when AWTYP = VBRK, WBRK, VBRR |