This tutorial shows you two ways to receive a payment for a sales order.
Navigate to Sales > Sales Orders
The Sales Orders page will be displayed.
Select the order from the list.
The Sales Order page will be displayed in the edit mode.
Select the Invoice tab, then click Receive Payment.
The Receive Payment page will open. Your invoice will appear in the bottom section.
Fill in the required fields for your invoice, and click Make Payment.
If you then reload your Sales Order page, you will see the invoice is now marked "Fully Paid".
Click on Sales > Receive Payments
Enter your customer name in the Received From field
Select the invoice from the list.
Enter payment amount, and necessary info. Then click Make Payment.