we are using in purcahse orders integreated to fi modules
If you don't want w/tax for some of the vendors for some
time, you can change the settings in FK02 in withholding
tax tab and deselect the W/H tax assigned for the vendores.
When it is again needed, again select the tab or assign the
another W/H tax to the vendors
The Interface developed by SAP-XI is Inbound Interface and