Let me help you find this estimate, @seldonpowell.
You can find the estimate on the invoice that you’ve converted. Click to open the invoice and then scroll down to the Estimate link at the bottom. The estimate that you’ve converted to an invoice will automatically be tagged as closed.
Also, please take note that an estimate can only be converted to an invoice with Accepted or Pending status.
Check this article for more information: Convert an estimate into an invoice in QuickBooks Online.
You can also check on the following article on how to set up and send progress invoices in QuickBooks Online if you’d only like to request partial payments.
I'm always here if you have any other concerns with your estimates. Take care and have a wonderful day!
