get the last 12 months usage
i have a requirement like that i want to display date from last 12 months .
suppose based on sy-datum i want to range the date between (last 12 months date from sy-datum and sy-datum)
if user put the sy-daum like 13.05.2009 , the output comes 13.05.2008.
is there any function module ober there . please me know.
Thanks in Advance.