Customer Exit Problem in Bex
I don't know abap but as per our requirement I need to write a Customer Exit,
my requirement is
I have user input value variable(ex,10,15 etc upto 31) then I have another Char ZCHSTDATE so if user enters 01 or anyvalue the report result should be the start date plus the value which user enters in the varaible section,ex.if I enter 05 then the out should be startdate+5,so if the start date is 5th Nov then the out put should be 10th Nov.Can't use offset values since user can enter anyvalue between 1 to 31.The Variables I am using are zvuser(User Entered Days) and zvstdays(Customer Exit variable),please can any body help in providing the customer exit code.
Thanks in Advance,