In Symbient Opta, you can capture a payment received directly from the Invoice.
After having created and saved an Invoice with Items, select the Invoice that you would like to
capture the payment for by clicking on Accounting > Accounts Receivable > Invoices and from the
list of orders either.
Click on the Pencil icon
Check the box and select Edit
Click the Invoice Number link
On the Details tab of your Invoice, select the "Make Payment" button.
Symbient Opta will automatically open the Receive Payment from Customer screen and copy the date from the invoice.