Dunning Letter statement for partial paid invoices

Hi Team,

We are implementing Advanced collection module (12.1.3) by Dunning method and Staged Dunning plan. We have a requirement like Debit Memo & Credit Memo invoice types should not include which is able to get this. But there is a requirement where the Dunning letter statement should not include Customer partial paid invoices which is before/after due date and which ever delinquency status.

Ex 1: Invoice Amount - 5000$. Due date 10-Jun-20 Receipt amount applied 3500$ (Before due date 02-Jun-20).So balance amount 1500$

Ex 2: Invoice Amount - 7000$. Due date 10-Jun-20 Receipt amount applied 5000$ (After due date 20-Jun-20). So balance amount 2000$

Ex 3: Invoice Amount - 4500$. Due date 10-Jun-20 Applied Credit memo for 2500$. Balance due 2000$