How to set a characteristic dependent on value of a keyfigure

Question

Hi folks,
I'm facing the following problem:
I need to create a solution that enables a user to set a characteristic to a values (Y or N).
Because of the circumstances no direct access to RSA1 is possible.
This is why I thought about BI  IP.
The idea is now to plan a keyfigure with 0 and 1. Next step would be to use a planfunction in order to create the corresponding characteristic values:
so like
keyfigure
                   month Jan Feb
customer A              1     0
customer B              1    1
char
leads to                   Jan Feb
customer A              N    Y
customer B              N    N
Any comment whether I'm on the right path?
My Fox Formular looks like:
DATA  FYEAR TYPE 0FISCYEAR.
DATA FKNO_Y TYPE YKNOKUN.
DATA FKNO_N TYPE YKNOKUN.
DATA FREMSPER_Y TYPE YREMSPER.
DATA FREMSPER_N TYPE YREMSPER.
FKNO_Y = Y.
FKNO_N = N .
FREMSPER_Y = Y.
FREMSPER_N = N.
FYEAR = VARV(YMM0005E).
FOREACH FYEAR.
   IF {YKNORESP, FYEAR, FKNO_Y, # } = 1.
      {YKNORESP, FYEAR, FKNO_N, Y} = 1.
  ELSE.
         {YKNORESP, FYEAR, FKNO_N, N} = 0.
  ENDIF.
ENDFOR.

Answer 1

Create 2 reports
Report 1 having Month equal to @{Pv_Type}{Dummy}
Report 2 having Year equal to @{Pv_Type}{Dummy} . Assuming Year in in CHAR datatype . If it is not then convert it to char.
Now for your Year section use Report 1 in condition (row count greater than 0) and for your Month section use Report 2 in condition (row count greater than 0).
Thanks