What is a dunning process and Sap and oracle are same in functional in accounts?

Dunning is the process of reminding to the customers or debtors regarding there dues to the company and in sap we have total four dunnings  Dunning letter have 10 days duration between each if the debtors does not clear the amount within three dunning letters then the last dunning letter will be the court notice against the debtors

Dunning process of reminding customer due through notice in sap this function automatically processed as per timing of due date .

Well oracle and SAP have there own ways to Deal with Dunning Procedure. Basically use to a customers to remind a due date or else can say deadline.

i HAVE Background About Sap and just need someone who train me on it 

Dunning process consists of informing or reminding customers through a notice about outstanding debts.In sap we can do this process automatically.

oracle and sap have different  concepts of accounts