We added a retro-earnings code to the compensation details. Compensation elements are created and then assigned to your employees to calculate gross pay. In each case the export to ADP – or another payroll system, if you want us to map one contact us – uses the earnings code on the compensation element as the ADP etc. pay code. If pay is changed for a historical period then it is too late to adjust the original payroll, instead a retro-pay calculation takes place to find out the difference. Rather than sending this data to ADP etc. in the current payroll period using the same pay code as the original payroll period, you now have the option to send the data for retrospective adjustments using a special earnings code. You can use the same retro-earnings code for one or for all compensation elements.