HR_INFOTYPE_OPERATION Maintenance of HR infotype entries, used to create (operation = INS), change (operation = MOD), delete (operation = DEL) and create successor (operation = COP)
HR_SPA_EMPLOYEE_DETAILS_GET Get Employee salary details
HR_GB_PERIOD_DATES Get FI period dates based on payrole area
HR_PERSONAL_WORK_SCHEDULE Returns employees work schedule into internal table PERWS. I.e. Days planned to work (stdaz NE 0)
HR_SPA_EMPLOYEE_DETAILS_GET