The option to recall an incorrectly sent invoice in QuickBooks Online (QBO) is unavailable, John. I suggest editing the invoice and sending it to the correct customer.
After editing, you may want to reach out to the incorrect recipient to inform them about the error to avoid confusion.
Here's how to edit the invoice:
- Go to Sales, then select Invoices.
- Locate the invoice and select View/Edit.
- Change and review the information.
- Select Review and Send.

If you need further assistance, don't hesitate to reply. The Community is here to help.