ZRUŠENA OBJEDNAVKA EMAIL WOOCOMMERCE

function wc_cancelled_order_add_customer_email( $recipient, $order ) {
    // Check if $order is null
    if ( is_a( $order, 'WC_Order' ) && ! is_null( $order->billing_email ) ) {
        // Append the billing email to the recipient list
        return $recipient . ',' . $order->billing_email;
    }

    // If $order is null or billing_email is null, return the original recipient
    return $recipient;
}

add_filter( 'woocommerce_email_recipient_cancelled_order', 'wc_cancelled_order_add_customer_email', 10, 2 );