Magento Customer Grid Custom attribute can't export csv and export xml

Question

Magento Customer Grid Custom attribute can't export csv and export xml, Showing error, how to add custom attributes to the customer export.

PHP Fatal error: Uncaught TypeError: Argument 2 passed to Magento\Framework\View\Element\UiComponentFactory::argumentsResolver() must be of the type array, null given, called in /var/www/Magento/vendor/magento/framework/View/Element/UiComponentFactory.php on line 220 and defined in /var/www/Magento/vendor/magento/framework/View/Element/UiComponentFactory.php:172\nStack trace:\n#0 /var/www/Magento/vendor/magento/framework/View/Element/UiComponentFactory.php(220): Magento\Framework\View\Element\UiComponentFactory->argumentsResolver('customer_clv', NULL)\n#1 /var/www/Magento/vendor/magento/module-ui/Component/Listing/Columns/Column.php(77): Magento\Framework\View\Element\UiComponentFactory->create('customer_clv', 'decimal', Array)\n#2 /var/www/Magento/vendor/magento/module-ui/Component/MassAction/Filter.php(182): Magento\Ui\Component\Listing\Columns\Column->prepare()\n#3 /var/www/Magento/vendor/magento/module-ui/Component/MassAction/Filter.php(180): Magento\Ui\Component\MassAction\Filte in /var/www/Magento/vendor/magento/framework/View/Element/UiComponentFactory.php on line 172, referer:

customer_listing.xml file containd below code.

<?xml version="1.0" encoding="UTF-8"?> <!-- /**  * Copyright © Ourmodule. All rights reserved.  *  */
--> <listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <columns name="customer_columns" class="Magento\Customer\Ui\Component\Listing\Columns">

        <column name="customer_clv" class="Ourmodule\Customer\Ui\Component\Listing\Column\Customerclv">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="filter" xsi:type="boolean">true</item>
                    <item name="sorting" xsi:type="string">asc</item>
                    <item name="sortable" xsi:type="boolean">true</item>
                    <item name="editor" xsi:type="string">text</item>
                    <item name="label" xsi:type="string" translate="true">Customer Lifetime Value</item>
                    <item name="sortOrder" xsi:type="number">81</item>
                </item>
            </argument>
        </column>
        <column name="predicted_average_profit" class="Ourmodule\Customer\Ui\Component\Listing\Column\Customerclv">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="filter" xsi:type="boolean">true</item>
                    <item name="sorting" xsi:type="string">asc</item>
                    <item name="sortable" xsi:type="boolean">false</item>
                    <item name="editor" xsi:type="string">text</item>
                    <item name="label" xsi:type="string" translate="true"> Transaction Value</item>
                    <item name="sortOrder" xsi:type="number">82</item>
                </item>
            </argument>
        </column>
        <actionsColumn name="actions" class="Ourmodule\Customer\Ui\Component\Listing\Column\ClvActions">
            <settings>
                <indexField>entity_id</indexField>
            </settings>
        </actionsColumn>        

    </columns> </listing>

Answer 1

Please do the following steps.

1.Update your di.xml with following code

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
   
    <type name="Magento\Ui\Model\Export\MetadataProvider">
        <plugin name="custom_customer_export" type="Namespace\Module\Model\Plugin\ModifyGridExportPlugin" sortOrder="1" disabled="false"/>
    </type>

2.In the ModifyGridExportPlugin add below code

<?php
namespace Namespace\Module\Model\Plugin;
use \Magento\Sales\Api\OrderRepositoryInterface;
class ModifyGridExportPlugin
{
    private $logger;
    protected $_resource;
    public function __construct(
        \Psr\Log\LoggerInterface $logger,
        \Magento\Framework\App\ResourceConnection $resource
    ) {
       
        $this->_resource          = $resource;
    }
    public function afterGetRowData($subject, $result, $document, $fields, $options)
    {
        $i = 0;
        foreach ($fields as $column) {
                if ($column === 'customer_clv') {
                    $customerId=$document['entity_id'];
                    $value="Test"
                    ................
                    ................
      
                    $result[$i] = $value;
                }
               if ($column === 'predicted_average_profit') {
                    $customerId=$document['entity_id'];
                    $value="Test"
                    ................
                    ................
      
                    $result[$i] = $value;
                }
                
            $i++;
            continue;
        }
        return $result;
    }
}
?>