WooCommerce send order complete email automatically

Question

I'm faced with a little problem. I need to send the Customer Invoice / Order Details email automatically when an order is completed.

I haven't found any action or filter to apply in this case an the internet is not useful. Has anyone an idea how to send this email when the order status switches?

Best regards!

Answer 1

You can use woocommerce_order_status_completed hook and WC_Email_Customer_Invoice

add_action( 'woocommerce_order_status_completed', 'mysite_woocommerce_order_status_completed', 10, 1);

function mysite_woocommerce_order_status_completed( $order_id ) {
   // Send invoice email to customer
   //use order ID as trigger value
   WC()->mailer()->emails['WC_Email_Customer_Invoice']->trigger($order_id);
}