BAPI / Exit for creating the debit entry in customer's account

Hi ,

Requirment Details :

If Charges are to be levied, the same to be indicated in notification by selection or tick mark (Dissconection order status -Teco). In that case, debit entry should be created automatically in customer's account.

Can you please let me know the BAPI / events or exit for this requirements .

Regards

Rahul