Sometimes you may need to revise an invoice or estimate you have already
sent to a customer by email.
To do this task
Open the original invoice or estimate.
Modify it as needed.
Save your changes.
Indicate whether you want to send the revised invoice or estimate to the
Click Send to send the invoice or estimate.
Otherwise, click Do Not Send.
If you are sending the invoice or estimate, complete the email
If needed, customize the note so it is appropriate for the situation.
If you want to give your customer the option to pay you online, make sure
the Allow online payment checkbox is selected.
How does online payment work?