Another way to reduce abs quota to zero is to use IT 416. ?In this infotype, manual method allows more flexibility as compared to automatic one. The methods should have been configured before use.
Note for payroll consultants: In payroll sub-schema XT00 function P0416 may create comp payment w/t depending on how IT 416 has been created or the comp method. The for each IT 416 record, the P0416 function loops through IT 2006 record based on the validity period and deduction period, till IT 416 hrs/days are nil. If ok, the entitlement balance hrs (field P2006-ANZHL) are reduced to create a comp pay w/t entry in OT (which then moves to IT end of P0416 processing). The hrs field in OT or IT has 2 dec as against 5 dec in P2006-ANZHL. This introduces possibly a rounding error in each OT entry. Hence the total comp w/t hrs may not be exactly same as IT 416 hrs.
To address this I modified the P0416 function to add the rounding differences to a var with 5 dec and add this var contents to the last record created in OT.