Problem: How can I adjust Customer Account with Shareholder's account (As Shareholder is Owner that company as well)
Solution:
1) Enter Mutual Settlement to write off Receivable Balance, Transaction Type - Customer Debt Adjustment, in Account field any Expense GL account can be selected
2)In Accounts Receivable Tab select the unpaid Invoice from this Customer, you can use Pick options to select outstanding invoices
3) Enter Reversal Other Expense Transaction, to adjust Expense with Shareholder's account
4) Check the transaction's Accuracy