SAP Table TVAT001 - Customizing of Tax on Sales/Purchases - Control of Screen

Field Key Data Element Type Offset Leng Decimals Check Table Text
MANDT X MANDT CLNT 0 3 0 T000 Client
KALSM X KALSM_D CHAR 3 6 0 T683 Procedure (Pricing, Output Control, Acct. Det., Costing,...)
XBASC XBASC CHAR 9 1 0 Tax base amount changeable?
XHWCONV XHWCONV CHAR 10 1 0 Conversion of tax from the local to the document currency

847243FF810 unjustified - manual tax HWSTE missing in
842168FF742 - FF747 if manual tax was entered
719340MIRO FB60 FB70 - tax base cannot be changed
512561FB60/MIRO: Restricting changes to tax base
406563FB60/MIRO: Changing HWSTE does not work