newsupernova/vendor/vertex/module-tax/etc/frontend/di.xml

<?xml version="1.0"?>
<!--
  @copyright  Vertex. All rights reserved.  https://www.vertexinc.com/
  @author     Mediotype                     https://www.mediotype.com/
  -->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <!-- Turn on error messages during Multishipping checkout -->
    <type name="Magento\Multishipping\Controller\Checkout\AddressesPost">
        <plugin name="vertex_multishipping_errors_on" type="Vertex\Tax\Model\Plugin\MultishippingErrorMessageSupport" />
    </type>
    <type name="Magento\Multishipping\Controller\Checkout\ShippingPost">
        <plugin name="vertex_multishipping_errors_on" type="Vertex\Tax\Model\Plugin\MultishippingErrorMessageSupport" />
    </type>
    <type name="Magento\Multishipping\Controller\Checkout\Overview">
        <plugin name="vertex_multishipping_errors_on" type="Vertex\Tax\Model\Plugin\MultishippingErrorMessageSupport" />
    </type>
    <type name="Magento\Multishipping\Controller\Checkout\OverviewPost">
        <plugin name="vertex_multishipping_errors_on" type="Vertex\Tax\Model\Plugin\MultishippingErrorMessageSupport" />
    </type>
    <type name="Magento\Checkout\Block\Onepage">
        <arguments>
            <argument name="layoutProcessors" xsi:type="array">
                <item name="reorderTaxMessage" xsi:type="object">Vertex\Tax\Block\Checkout\SortTaxMessageProcessor</item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Checkout\Block\Cart\Totals">
        <arguments>
            <argument name="layoutProcessors" xsi:type="array">
                <item name="reorderTaxMessage" xsi:type="object">Vertex\Tax\Block\Checkout\SortTaxMessageProcessor</item>
            </argument>
        </arguments>
    </type>
</config>