WooCommerce: Adding a second email address to a completed order
<p>As you know, WooCommerce doesn't have any options to add a second email adress in the mail settings for completed orders. Only customers are receiving these email. I don't mean the email that is sending, when everybody orderes something, I mean the mail, that is sending, when a order is completed by the admin in the backend.</p>

<p>The reason why I need this: The supplier of our shop need to be informed, when a order is completed by us, so that they can send out the ordered products. I found some solutions, but the most doesn't work anymore or where sending when a order is given, but as I said, I need this mail for completed orders.</p>

<p>Thank you!</p>