To show custom field in order-received page you have to use
woocommerce_thankyou
hook.
Here is the code:
// define the woocommerce_thankyou callback
function action_woocommerce_thankyou($order_id)
{
$my_custom_field = get_post_meta($order_id, '_billing_my_field', TRUE);
}
// add the action
add_action('woocommerce_thankyou', 'action_woocommerce_thankyou', 10, 1);
UPDARED
To add custom billing fields in WooCommerce email you have to use
woocommerce_email_customer_details
hook; this will be displayed just
before the customer details.
Here is the code:
add_filter('woocommerce_email_customer_details', 'custom_woocommerce_email_order_meta_fields', 10, 3);
function custom_woocommerce_email_order_meta_fields($order, $sent_to_admin, $plain_text)
{
$_billing_my_field = get_post_meta($order->id, '_billing_my_field', true);
if ($plain_text)
{
echo 'My field is ' . $_billing_my_field;
}
else
{
echo '<p>My field is ' . $_billing_my_field . '</p>';
}
}
All code goes in function.php file of your active child theme (or theme) or also in any plugin file.
- I have assuming that you have added a custom billing fields as
$fields['billing']['billing_my_field']
using woocommerce_checkout_fields
hook.
- All the codes are tested and fully functional.