Here's how:
- Go to the Accounts Receivables page either by:
- Clicking on Orders >> on the left menu, under Account Receivable, click on Manage **or**
- From the Dashboard, click on the Past Due tab
- On the Invoices tab, select the invoice(s) to apply the payment to
- Click on the With Selected Invoices button
- Click on Prepare Apply Payments
- Key in the information as needed
- Click on Apply to All Invoices