<type name="MagentoCheckoutModelDefaultConfigProvider">
        <plugin name="add_product_datails"
         type="NameSpaceModuleNamePluginModelDefaultConfigProvider"/>
    </type>


 public function afterGetConfig(MagentoCheckoutModelDefaultConfigProvider $subject, $result)
{
      $items = $result['totalsData']['items'];
    foreach ($items as $index => $item) {
   $result['quoteItemData'][$index]['your_mesage_key'] = $yourmessage;
}
}

<!-- ko if: (getMessage($parents[1]))-->
        <span class="product-view-approveditem-check-icon">
            <span class="label" data-bind="text: getMessage($parents[1]"></span>
        </span>
    <!-- /ko -->

getMessage: function (itemId) {
                var itemsData = window.checkoutConfig.quoteItemData;
                var msg= '';
                itemsData.forEach(function(item) {
                    if (item.item_id == itemId['item_id']) {
                        msg= item.is_show_icon;
                    }
                });
            return msg;
            },