Reallocate Payments
Ever inadvertently applied a payment to the wrong invoice and wanted to change the payment to another invoice? Now you can without calling support.
From the Customer Account Summary screen, click on the Payments tab. Select the payment that you would like to reallocate to another invoice and click on View Detail. From the screen that opens up (shown below) click on Reallocate Payment.
In the screen that pops up you will be given a list of outstanding invoices for that particular customer.You will be able to reallocate the selected payment to any outstanding invoice and the system will then void the previous transaction.