Hi, gordon.
We cannot manually mark an invoice as "Sent" without emailing it, as the system is designed to update the status only when the invoice is sent to the customer.
However, if you'd like to achieve this without sending the invoice to your customer, you can use a dummy email address on the invoice and send it. This will mark the invoice as "Sent" in the system without reaching your customer.
If you have additional concerns, feel free to click the Reply below. I’d be glad to assist you further.
