WooCommerce - Add custom field (in an order) to the order emails

gistfile1.php

/**
 * Add the field to order emails
 **/
add_filter('woocommerce_email_order_meta_keys', 'my_woocommerce_email_order_meta_keys');

function my_woocommerce_email_order_meta_keys( $keys ) {
	$keys['How did you hear about us?'] = 'hear_about_us';
	return $keys;
}

Hi there. I purchased this plugin today (25 sites). I installed it and added in an extra field (label is Ship Date) under Shipping. I also added in the script above so that the new field would be added to the emails going out. However, adding in the above script did not add it to any email order receipt nor email to the admin. Please help.

@seozones and @fabio-farolfi make sure you are using the name and not the label as the key in the above code.

For example if I have a checkout field named my_example with label of "My Example" then for the fields to show in the admin emails the code would look like this:

/**
* Add the field to order emails
**/
add_filter('woocommerce_email_order_meta_keys', 'my_custom_checkout_field_order_meta_keys');
 
function my_custom_checkout_field_order_meta_keys( $keys ) {
$keys[] = 'my_example';
return $keys;
}

That is how I got it to work for me ;) Cheers!

I confirm the snippet works, but you have to use the field slug, not the label or the name.

Thanks to everyone for helping with this addition. Question I have, how do I add more than one custom field?

Found my own answer after doing a web search. Found the necessary info here: http://bit.ly/H0VPP4

Does still work for woocoommerce 2.1.6? I can't seem to get it working. Here's my code

//display custom fields backend product creation
add_action('woocommerce_product_options_general_product_data', 'woo_add_custom_general_fields');

function woo_add_custom_general_fields() {
global $woocommerce, $post;
echo '

';
woocommerce_wp_text_input(
array(
'id' => 'amazon_code',
'label' => __('Amazon Coupon Code', 'woocommerce'),
'placeholder' => 'Enter Coupon Code',
'desc_tip' => 'true',
'description' => __('Enter Amazon Coupon Code', 'woocommerce')
)
);

echo '</div>';

}
//save fields from product backend creation
add_action('woocommerce_process_product_meta', 'woo_add_custom_general_fields_save');
function woo_add_custom_general_fields_save($post_id) {
$woocommerce_text_field = $_POST['amazon_code'];
if(!empty($woocommerce_text_field))
update_post_meta($post_id, 'amazon_code', esc_attr($woocommerce_text_field));

}

//add custom amazon coupon code to email
add_filter('woocommerce_email_order_meta_keys', 'my_woocommerce_email_order_meta_keys');
function my_woocommerce_email_order_meta_keys($keys) {
$keys[] = 'amazon_code';
return $keys;
}

The code is not works for WC 2.1.12

woocommerce_email_order_meta_keys - not properly!!!
woocommerce_email_customer_details_fields - properly!
//
add_filter('woocommerce_email_customer_details_fields', 'my_woocommerce_email_order_meta_keys', 10, 1);
function my_woocommerce_email_order_meta_keys($keys) {
$keys[] = 'you're text';
return $keys;
}

Can anyone see a problem with this? Any assistance much appreciated!

add_filter('woocommerce_email_order_meta_fields', 'custom_woocommerce_email_order_meta_fields', 10, 3 );
function custom_woocommerce_email_order_meta_fields( $fields, $sent_to_admin, $order ) {
$fields['delivery_date'] = array(
'label' => __( 'Pre-order' ),
'value' => get_post_meta( $order->id, 'delivery_date', true ),
);
$fields['message'] = array(
'label' => __( 'Message' ),
'value' => get_post_meta( $order->id, 'message', true ),
);
$fields['shipping_email'] = array(
'label' => __( 'Recipient Email' ),
'value' => get_post_meta( $order->id, 'shipping_email', true ),
);
$fields['delivery_instructions'] = array(
'label' => __( 'Special Delivery Instructions' ),
'value' => get_post_meta( $order->id, 'delivery_instructions', true ),
);
return $fields;
}

woocommerce_email_customer_details_fields doesn't work. I understand that woocommerce_email_order_meta_keys is depreciated, but it works...

Hi guys,

How can I implement this code to send the custom field in the "Admin New Order Email"?

@dimbert82
insert the code in your active theme or child theme functions.php

code like this:

add_filter( 'woocommerce_email_order_meta_fields', 'custom_order_mail_fields_callback', 10, 3 );
function custom_order_mail_fields_callback( $fields, $sent_to_admin, $order ) {    
        $fields['yourdata'] = array(
            'label' => __( 'yourdata to display' ),
            'value' => ' yourdata value',
        );
    }
    return $fields;
}