EXIT to derive values in characteristic relationship.

Hi BPS Experts,

I am working with BW-BPS Planning area.

This contains 0COMP_CODE characteristic in the planning level.

The is another characteristic called YTIMEZONE in the planning area but not included in the planning level.

Now we have to define a characterstic relationship of type EXIT to derive the values of YTIMEZONE based on the 0COMP_CODE values entered in the planning layout.

There is a Custom table ZTZONEMAP maintained in the BW system which has the mapping between 0COMP_CODE & YTIMEZONE. So we have to derive the YTIMEZONE values based on this table,

Please let me know how to achieve this! what is the FM source code to get this logic?

Thanks & Regards

Narendra Reddy