I have been struggling with this error all day, I have tried all the solutions on Internet, but it keeps showing 404 Error when I click the link on my custom menu.

Here is my code


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Backend:etc/menu.xsd">
        <add id="Vendor_Module::menu" title="Sift Science" module="Vendor_Module" sortOrder="51" resource="Vendor_Module::menu"/>
        <add id="Vendor_Module::menu_item" title="Configuration" module="Vendor_Module" sortOrder="10" parent="Vendor_Module::menu" action="SiftMenu/ConfigMenu/" resource="Vendor_Module::menu_item"/>

Controller /app/code/Vendor/Module/Controller/Adminhtml/ConfigMenu/SiftSetup.php


namespace Vendor\Module\Controller\adminhtml\configmenu;

use \Magento\Backend\App\Action;
use \Magento\Backend\App\Action\Context;
use Magento\Framework\View\Result\PageFactory;
use \Magento\Framework\Json\Helper\Data;

class SiftSetup extends Action
    protected $resultPageFactory;
    protected $jsonHelper;

    public function __construct(Context $context, PageFactory $pageFactory, Data $jsonHelper )
        $this->resultPageFactory = $pageFactory;
        $this->jsonHelper = $jsonHelper;

    public function execute()

        die ("test module");


routes.xml /app/code/Vendor/Module/etc/adminhtml/routes.xml

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
    <router id="standard">
        <route id="SiftMenu" frontName="SiftMenu">
            <module name="Vendor_Module" />


You first should change the namespace for controller's action

namespace Vendor\Module\Controller\Adminhtml\ConfigMenu; //Capital for first letter

You should change your action in the menu.xml:

<add id="Vendor_Module::menu_item" 
    title="Configuration" module="Vendor_Module" sortOrder="10" 
    action="siftMenu/configMenu/siftSetup"    #full controller-action pattern

You also need to change the routes.xml in etc/adminhtml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    <router id="admin"> <!-- admin -->
        <route id="SiftMenu" frontName="SiftMenu">
           <module name="Vendor_Module"/>
  • hello, it's still not working, I changed capital for first letter on route and controller folder. action="SiftMenu/ConfigMenu/SiftSetup" and namespace Transom\SiftScienceModule\Controller\Adminhtml\ConfigMenu; – Oscar Vazquez Sep 19 '19 at 22:48
  • <router id="admin"> instead of <router id="standard"> – Jeff Yu Sep 19 '19 at 22:50
  • Oh it works now! thank you very much, I did not notice that – Oscar Vazquez Sep 19 '19 at 22:57

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