If you have the Advanced Portal activated and you have selected Invoices from the list of options, your constituents can use the portal to see a list of all their invoices and make payments using the Invoices icon.
After clicking on Invoices, a grid will appear that lists all the constituent's invoices. The top of the grid will show the Last Invoice Transaction Date, Last Invoice Transaction Amount, and the Amount Outstanding for all their invoices.
Constituents can click on the Payment Page URL link to open an invoice and print or make a payment with a credit card.