Hi Narasimha,
Mostly the financial business processes like dunning, write off, payment returns etc. adds more creditworthiness points in to customer's master record. And, those creditworthiness points can then be replicated to FSCM (if you use financial processes in FICA).
So, both master data and transactional data can be replicated to FSCM. The transactional data then can be stored as a internal credit rating which you can finally use in your credit score calculating formula.
You can refer below link for this.
Thanks
Bodhisattwa