By default all administrators of your organization will receive each invoice by email. All previous invoices are also available in the "Billing" menu.
Sending invoices to additional recipient
Go to the "Billing" menu
Click on "Edit" under ''External invoice recipients''
Add that (or these) person's email
Save
All future invoices will be sent to these people as well. You can also "see all" previous invoices right below that button.
