Go to “Settings” or the gear icon > click on “Emails & Texts”
Select “Invoice” on the list of email templates
You can edit the subject here:
And the body
Note: There are custom fields that you can add. To see the full list click here.
Simply Copy & Paste!
You can click on “Preview” to see the changes you made on the template and to see how it looks like when sent
Hit “Save Changes” when done