If you are having an issue where your Child Support deduction timesheet lines displaying a zero line value, and also on payroll reports (Pay Details, Deduction reports), the issue is due to the missing Protected Earn/Day value on the Child Support Deduction setup screen.
As a consequence, the Line Total value on any Child Support Deduction line in the time sheet will be zero, even if the Hours/Value field has the correct value.
See: Set up a child support deduction which details the correct setup of the Protected Earn/Day field to avoid this issue.
To correct transactions that have already been processed incorrectly
Leave the Child Support Deduction Protected Earning amount as zero for the reversals.
Use a Timesheet to reverse the pay with the Child Support deduction code.
Reverse the Income and Child Support Deduction lines only on the reversal ie enter as negative values
Check the Pays using the original Pay Period Ending and Date Paid dates when processing both the reversals and corrections, tick to include Timesheets only.
Process the timesheets as normal.
Update the Child Support Deduction code with the correct Protected Earn/Day rate (NB this changes each calendar year).
Re-enter the two lines for each pay correctly as Timesheets. Check the line totals are now correct.
Check the pays and process the timesheets as normal.
See this link: Reverse a processed pay.