This video describes how you can add more payment lines in a sales order, for example when the customer wants to split their payment over different payment methods. The video also describes how to add a part payment and then put the remainder on account. Step by step instructions can be found below the video.
Steps
Go to the Payment tab in the Sales Order.
Turn on the Manual Payment toggle.
Use the New button to add more payment lines as required.
Specify the payment methods and amounts on each line.
Complete any authorisations necessary.
Toggle Remainder on A/C if any outstanding balance is to be paid on account.