DavidFeldman

Yes, that helps. Thank you.

I have a shared hosting client who wanted to upgrade. He had a due invoice for the next month (at the lower price) so I cancelled it and then later figured out that I could enable him to upgrade via WHMCS, which he did. But now there is no invoice for next month and when I click Generate Due Invoices it doesn't make any. How can I generate a new invoice automatically for next month? Or should I just make this one manually and then in another month it will work automatically?

When a client pays an invoice, I get an email from the payment processor. I would like to get one from WHMCS telling me which invoice was paid. Perhaps this is easy, but I haven't yet found how to set that up....