Woocommerce Refund Email

Question

I have done a vast amount of searching and although I have found users that have asked how to achieve the following no examples of working solutions to the best of my knowle

Answer 1

The main problem is that the woocommerce_order_status_refunded hook is not registered by default with the send_transactional_email callback, so you can't use the above method to send emails automatically when the order status is changed to Refunded.

You can change that with the following:

/**
 * Register the "woocommerce_order_status_refunded" hook which is necessary to
 * allow automatic email notifications when the order is changed to refunded.
 * 
 * @see http://stackoverflow.com/a/26413223/2078474
 */
add_action( 'woocommerce_init', function() {
    add_action( 
        'woocommerce_order_status_refunded', 
        array( WC(), 'send_transactional_email' ),
        10, 
        10 
    );
});

Also make sure that you have enable it in the corresponding section in the Woo Settings -> Emails tab:

By default the following actions are registered for automatic email notifications:

woocommerce_low_stock
woocommerce_no_stock
woocommerce_product_on_backorder
woocommerce_order_status_pending_to_processing
woocommerce_order_status_pending_to_completed
woocommerce_order_status_pending_to_on-hold
woocommerce_order_status_failed_to_processing
woocommerce_order_status_failed_to_completed
woocommerce_order_status_completed
woocommerce_new_customer_note
woocommerce_created_customer

Update:

Good news, @helgatheviking just got her WooCommerce pull request merged (see the comments below).

This means we should be able to use the new woocommerce_email_actions filter:

add_filter( 'woocommerce_email_actions', function( $email_actions ) {
    $email_actions[] = 'woocommerce_order_status_refunded';
    return $email_actions;
});

in WooCommerce 2.3+.

Similar should work for other non-default email actions, like woocommerce_order_status_cancelled.

Answer 2

I think the problem is you are calling

add_action( 'woocommerce_order_status_pending_to_processing_notification', array( $this, 'trigger' ) );

Try calling:

add_action( 'woocommerce_order_status_refunded', array( $this, 'trigger' ) );