about rebate returns

hi,

sap gurus,

rebates has been for a customer and he has reaached his target and after one year we have calculated the % of accural amount and we have settled by paying him in cash ie by raising a credit memo and settled

then

he returns the material under which we have created a rebate agreement.

in such what we have to do

can any explain the process.

ie REBATE RETURNS

PLZ....

my id is timmampalli@gmail.com

regards,

balaji.t

09990019711