Maintaining Military Service Data 
Use
You can use the Military Service infotype (0081) to record all absence types that have some connection to military or non-military service.
If you create a record in this infotype, the system also generates a corresponding absence record in the Absences infotype (2001). If you lock a record in this infotype, however, the corresponding absence record in the Absences infotype is NOT locked automatically. You must indicate that you want the record locked in the Absences infotype as well.
When you customize the system, you can store highly specific regulations for military and non-military service. You can also define specific periods for this infotype in Customizing. You can also determine whether Absence records in this infotype can be created for just male employees, or for both male and female employees.
Procedure
The Military Service screen appears.
If no default values are displayed, choose the appropriate absence type.

According to the Type of military service, you can determine certain validity periods for this infotype in Customizing. If these periods are exceeded, the system displays a warning, but processing continues.
Periods can also be stored for absence types (subtypes of the absences infotype). These periods can not be exceeded.
Result
You have now entered data on military service for an employee.