Thanks Martin,
Now some useful result is coming. Now I am using distribution by reference.
Now it distributed the values among all the three months.
My Planning Function setting is
Change char is : 0calyear
Reference Data Selection : 0calmonth
But my requirement is effective changed value need to be added in first month only;
My Planning Function input parameter is :
0calyear:2013
0calmonth:01.2013
Regards,
Abhishek