Bank account number to default based on the legal entity BSV on the liability account

Organization Name (Required - If you are an Oracle Partner, please provide the organization you are logging the idea on behalf of):

Description (Required):

The requirement is to have the bank account number defaulted based on the legal entity BSV on the liability account of the invoice header. Not sure how we can achieve this. Business do not want to have any manual intervention to select the bank account while processing PPR when the invoice is having multiple distribution lines.

Use Case and Business Need (Required):

Case-1: Business wants to make the payment with the bank account based on the Legal Entity BSV on the Liability account of the invoice header. The Bank Accounts are configured in such a way with cash and cash clearing accounts. For example, an invoice is created with Liability combination on the header defaulted either from supplier site or common options, with the BSV as 100, the respective bank account should be defaulted with BSV 100, setup at Bank Account level for the cash account. They do not want to have any manual intervention selecting the bank account