Hi Rohit,
It seems that the reply given by SAP is a bit contradictory. It is clearly mentioned in Note 2226447 that the BADI_TB_FIMA_CF_MANUPULATE is available only for Variable Interest product and not for Fixed Interest products.
So we cannot use this BADI for Fixed Deposits.
Don't know why they have replied to you that this note has to be implemented for Fixed Term Deposits.
Regards,
Rohan