Display custom fields values in WooCommerce order and email notification

Question

Based on \"Choosing a date and time after choosing the WooCommerce delivery method\" answer code, that displays custom Pickup fields and delivery dates, the following code d

Answer 1

To display the custom fields values in backend order edit pages (if they are saved in database for the order), use the following:

// View fields in Edit Order Page
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_fields_value_admin_order', 10, 1 );
function display_custom_fields_value_admin_order( $order ){
    // Display the delivery option
    if( $delivery_option =  $order->get_meta('_delivery_option') )
        echo '<p><strong>'.__('Delivery type').':</strong> ' . $delivery_option . '</p>';

    // Display the delivery date
    if( $delivery_datetime = $order->get_meta('_delivery_datetime') )
        echo '<p><strong>'.__('Delivery Date').':</strong> ' . $delivery_datetime . '</p>';
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

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The best shorter clean way to display the custom field values everywhere on frontend order pages and on email notifications is to display them in order totals table, just like used payment methods:

// Display the chosen delivery information
add_filter( 'woocommerce_get_order_item_totals', 'chosen_delivery_item_order_totals', 10, 3 );
function chosen_delivery_item_order_totals( $total_rows, $order, $tax_display ) {;
    $new_total_rows = [];

    // Loop through Order total lines
    foreach($total_rows as $key => $total ){
        // Get the chosen delivery values
        $delivery_option  = $order->get_meta('_delivery_option');
        $delivery_datetime = $order->get_meta('_delivery_datetime');

        // Display delivery information before payment method
        if( ! empty($delivery_option) && 'payment_method' === $key ){
            $label  = empty($delivery_datetime) ? __('Delivery') : __('Delivery Date');
            $value  = empty($delivery_datetime) ? __('AZAP', $domain) : $delivery_datetime;

            // Display 'Delivery method' line
            $new_total_rows['chosen_delivery'] = array( 'label' => $label,'value' => $value );
        }
        $new_total_rows[$key] = $total;
    }

    return $new_total_rows;
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

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Related thread: Choosing a date and time after choosing the WooCommerce delivery method