Comparison Period for Wage Type Options in Retroactive Accounting 
Comparison Period for Wage Type Options in Retroactive Accounting
Definition
The comparison period is a payroll period used within the Restrictions function in Change validation. It is used to determine which data has changed since the last export.
Use
If you are running first retroactive accounting for the first time for the
for-period in question, the Interface Toolbox will use the original payroll period as the comparison period. However, it could be the case that several retroactive accounting runs are required for a payroll period .
You are recalculating payroll period 01 from period 02.
If it is necessary to recalculate payroll period 01 from period 04 again, then the differences are created as follows.
The difference between the payroll period "period 01 recalculated from period 04" and the payroll period "period 01 recalculated from period 02".
The difference for the original period 01 is not created.
Rule
The payroll period that the system always uses for comparison is the most recent payroll period with the same
for-period view as the payroll period currently being processed.See also:
Defining the Comparison Period for Generating Wage Type Differences for Several Retroactive Runs