The seniority calculation can be carried out in two ways in the SAP system, depending on whether or not you want to obtain a payroll with a list of the partial items corresponding to each time period.

If you want to obtain a breakdown list of items, you process the seniority calculation within the payroll schema through the payroll function EADEV.

The payroll function EADEV determines the seniority, breaking down the partial items; additional to the calculation made by the function module ANTIG.

In the standard SAP system, the payroll function EADEV is integrated into the subschema EANT for calculating seniority.

In the SAP standard system, you can find the seniority calculation in the subschema EANT. This subschema processes the following functions:

• The P0092 function reads the data of infotype ‘Seniority’ (0092) and places it in the corresponding internal table.
• The EADEV function repeats the steps carried out by the function module ANTIG, additionally generating and valuating the wage types corresponding to each seniority time period.