How to include customer's email address on invoice

The order creation notification is sent when the order is created at the end of the checkout, if the payment is done on another website (like paypal) or offline (by bank transfer). Once the payment is done, the order status changes to "confirmed" and the order status notification is sent.

How to include the invoice number in the admin notification mail

Hi,

You have to edit the mail "order_admin_notification.html.php" and add: at the desired place