How to make payment or receive money towards opening balance?

The opening balances for Customers or Vendors can be adjusted via Journal Vouchers. Kindly go to Add New Accounting > Journal Voucher Window >Record

1. Receiving money from customer against opening balance:

When you receive money from your customer against the Opening Balance, you need to debit Cash / Bank Account and Credit the customer account.

2. Making payment to vendors against opening balance:

When you make payment to your vendor against the Opening Balance, you need to debit Vendor and Credit the Cash / Bank Account.

In this way you can adjust the opening balance of customers and vendors.