Get the current week and subtract 12 weeks

Question

Hi Experts,
Am getting the system current date and getting the current week using the FM->GET_WEEK_INFO_BASED_ON_DATE. Again I want to subtract 12 weeks including the current week. But still confused with the logic.
Also I came to know that I can use FM->DATE_GET_WEEK and can subtract 12 weeks from it.
So please advice how can I proceed further and how can I get the weeks that should be lesser than the 12weeks from the current week.
Waiting for your valuable ideas.:)
Thanks and Regards,
Ramakrishnan M

Answer 1

Try this one:
DATA: week      TYPE numc1,
         days      TYPE t5a4a-dlydy,
         date      TYPE p0001-begda,
         months    TYPE t5a4a-dlymo,
         years     TYPE t5a4a-dlyyr.
CALL FUNCTION 'RP_CALC_DATE_IN_INTERVAL'
     EXPORTING
       date      = s_ord_dt-low
       days      = days
       months    = months
       signum    = '+'
       years     = years
     IMPORTING
       calc_date = date.