Convert 0calmonth into 0calday with lookup on custom periods

Question

Hi All,
I need to convert 0calmonth into 0calday and it has to lookup on my own calender month,period and year.
The following custom objects are created based on infotype Change on Date ZIOI_CGON for inline with payroll periods.
PY Reporting Month   ZIO_PYMM
PY Reporting Period  ZIOI_PYPD
PY Reporting Year    ZIO_PYYY
so that i will get my actual correct data into infocube.
PY Reporting Period  ZIOI_PYPD*
Data : var_pypd type /BIC/OIZIOI_PYPD,
            var_cgon type /BIC/OIZIOI_CGON.
     var_cgon = SOURCE_FIELDS-/BIC/ZIOI_CGON.
  select single /BIC/ZIOI_PYPD into var_pypd
     from /BIC/PZIOI_PYPD
     where OBJVERS = 'A'
     and   DATEFROM <= var_cgon
     and   DATETO  >= var_cgon.
  if sy-subrc eq '0'.
     RESULT = var_pypd.
     else.
     RESULT = ''.
     ENDIF.
PY Reporting Month ZIO_PYMM
Data : var_pypd type /BIC/OIZIOI_PYPD,
            var_cgon type /BIC/OIZIOI_CGON,
            var_pymm type /BIC/OIZIO_PYMM.
     var_cgon = SOURCE_FIELDS-/BIC/ZIOI_CGON.
   select single /BIC/ZIOI_PYPD into var_pypd
     from /BIC/PZIOI_PYPD
     where OBJVERS = 'A'
     and   DATEFROM <= var_cgon
     and   DATETO  >= var_cgon.
   if sy-subrc eq '0'.
     var_pymm = var_pypd+4(2).
     RESULT = var_pyMM.
     else.
     RESULT = ''.
     ENDIF.
PY Reporting Year  ZIO_PYYY
Data : var_pypd type /BIC/OIZIOI_PYPD,
            var_cgon type /BIC/OIZIOI_CGON,
            var_pyYY type /BIC/OIZIO_PYYY.
     var_cgon = SOURCE_FIELDS-/BIC/ZIOI_CGON.
   select single /BIC/ZIOI_PYPD into var_pypd
     from /BIC/PZIOI_PYPD
     where OBJVERS = 'A'
     and   DATEFROM <= var_cgon
     and   DATETO  >= var_cgon.
  if sy-subrc eq '0'.
     var_pyYY = var_pypd+0(4).
     RESULT = var_pyYY.
     else.
     RESULT = ''.
     ENDIF.
while converting into 0calday the record has to be look up on my reporting month and year.
my req. is i need to get the start date from  pa9211 info type. we have our own payrol calender. so when we are extracting the data the data has to be in line with payroll calender
let say if emp 12345 start date is 21/09/2009. then as per our payrol calender he will fall under into oct payroll bcz speptember payroll has been already ran.the dates were 22/08/2009 to 17/09/2009
Appriciate if anybody advice me on this
Regards
Aravinda

Answer 1

Solved my self