Open Invoices
This is a way to get a quick view of only Open Invoices for the selected customer.
By Clicking the Details button the display expands to show the description that was originally entered onto the job when it was quoted.

This very concise view can be printed or faxed directly to the customer when he needs some detail about the open invoices.

If you need details about total sales for one customer, that is available in the reports section.