These snippets allow you to get custom fields data from stores and show them in the order email or in the order item totals that appears on several parts of the WC site

wps-get-custom-data.php

<?php
/**
** Get the store details and add them to order email
** below the order table
** WC Pickup Store plugin
** https://wordpress.org/plugins/wc-pickup-store/
**/
function custom_order_details_after_order_table($order) {
    $order_id = $order->get_id();
    $store_name = get_post_meta($order_id, '_shipping_pickup_stores', true); // Get store title for this order
    $store = get_page_by_title($store_name, OBJECT, 'store');
    $store_phone = get_post_meta($store->ID, 'phone', true);
    ?>
    <p class="details"><strong><?= __('Phone Number', 'text_domain') ?>:</strong> <?= $store_phone ?></p>
    <?php
}
add_action('woocommerce_email_after_order_table', 'custom_order_details_after_order_table');

/**
** Get the store details and add them to the order item totals (email, thankyou page, order view page)
** below the shipping details
** WC Pickup Store plugin
** https://wordpress.org/plugins/wc-pickup-store/
**/
function custom_reordering_order_item_totals($total_rows, $order, $tax_display) {
    $order_id = $order->get_id();
    $store_name = get_post_meta($order_id, '_shipping_pickup_stores', true); // Get store title for this order
    $store = get_page_by_title($store_name, OBJECT, 'store');
    $store_phone = get_post_meta($store->ID, 'phone', true);

    if($order->has_shipping_method('wc_pickup_store') && !empty($store_name)) {
        foreach ($total_rows as $key => $row) {
            $new_rows[$key] = $row;
            if($key == 'shipping') {
                $new_rows['store_data'] = array(
                    'label' => __('Phone Number', 'text_domain'),
                    'value' => $store_phone
                );
            }
        }
        $total_rows = $new_rows;
    }
    return $total_rows;
}
add_filter('woocommerce_get_order_item_totals', 'custom_reordering_order_item_totals', 10, 3);
?>

hi keylor, where do i call this script from

Hey @adrralph
Any of these snippets should be added to your functions.php into your child theme.