online invoice generated while a user can recharge plan online.to view an online user invoice on sidebar Billing > online Invoice options.
now you can show a list of online invoice until today on tabular formate show different columns like Transaction ID , User Name, Creation Date , Status , Payment Type and action.
if user payment is done successfully then invoice status set as a success, fail, open, pending.
Payment Type show like atom, payumoney, and onepay.Payment Type set as you activate anyone gateway for online recharge to the user.
in action, column shows you a more information Qty, Amount, TAX and Total. if invoice status open or pending then you can also re-check payment status in server.