how to delete transaction data in model by abap code or logic script

Dear Expert,

I have data in Opex Model like this:

Category Entity Costcentre   Account   Time       Signeddata

B01         AA01   CC_10101  1223300   2016.03    150000

Now, I want to modify this record like this

Category Entity Costcentre   Account   Time       Signeddata

B03         AA01   CC_10101  1223300   2016.03    150000

The first record will be disappeared in OPEX model.

please, tell me how to do this by implemeting ABAP code in BADI or script logic. ( exception: delete manually in bw by deletion by selection).

thanks