Solution : https://service.sap.com/sap/support/notes/586659 (SAP Service marketplace login required)
Key words :
directory/general/r3server/abap/note, previously-released notes 213004, complete btxtaxt data, including bsi tub 194, table btxtaxt entries, tax types introduced, latest note, table btxtaxt, bsi introduced, tax type 73
Related Notes :
521206 | Q&A: Master Note for U.S. BSI Interface |