Are you looking at IT 8 after pressing enter in PA30 or PA20? Or are you displaying the person's IT 8 in SE16?
If the w/t's characteristics
a)allows over-writing, hen in IT 8 you can enter an amt, and save. In that case, the indirect valuation from T510 does not happen and the indicator in IT 8 disappears. In this case, SE16 display also shows the amt you entered.
If the w/t
b)does not allow over-writing, then the IT 8 will get the amt from position if T510 does not have an entry; else from T510. In this case, after saving the IT 8, it should show the amt from one of these tables. and the IT 8 indirect valuation indicator also shows as 'I'
In this case SE16 display will show the w/t amt as blank.
In payroll, P0008 function uses the T510, if amt has not been entered in IT 8 for indirectly valued w/t.