Functionality Of Remittance Amount Field P03B102 W03B102K

Hi,

I want to know what is Functionality of Remittance Amount Filed in P03B102 W03B102K Form.

When Creating Standard Receipts in P03B102 W03B102E after entering all the details in the header from the Form we can select on Remittance, Select Invoices by Remittance will be displayed.

We can give Invoice no in Invoice Reference Field and search for Open Invoices.

But what ever the amount entered in the Remittance amount field will not populate in Payment amount field in P03B102 W03B102E.

So, I want to know what is purpose or functionality of Remittance amount Field is there any logic Involved for this filed.