BW-BPS: Copy value from characteristic 1 to characteristic 2

Hi,

I need an advice. I have an planning cube with planned data. Now, the sales managers need another new

characteristic for reporting. I'm looking for a planningfunction in BW-BPS to copy the value vom characteristic 1 to characteristic 2 for each record. I have to copy the value vom 0MATERIAL to

the new characteristic 0MAT_SALES.

which is the best and easiest way to afford that. Exit-Funktion?

regards,

pascal