Dear Developer, Magento also allows to create the custom admin menu items. So, follow the step by step instruction to create custom admin menu.

Step 1: Configure your custom module

Step 2: Register Your module with Magento

Step 3: Create your custom menu

Step 4: Clean the cache

Step 1: Configure your Custom Module

To configure the custom module, create module.xml inside app/code/Vendor/AdminMenu/etc and add the following to it:

<?xml version="1.0"?>     
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">            
  <module name="Vendor_AdminMenu" setup_version="1.0.0">
  </module>
</config>

Step 2: Register Your Module with Magento

For register your module, create registration.php inside app/code/Vendor/AdminMenu and add the following to the file:

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Vendor_AdminMenu',
    __DIR__
);

Step 3: Create Custom Admin Menu

create menu.xml file inside app/code/Vendor/AdminMenu /etc/adminhtml and add the following code in it:

<?xml version="1.0"?> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Backend:etc/menu.xsd">     
 <menu>        
    <add id="Vendor_AdminMenu::admin_menu" title="My Menu" module="Vendor_AdminMenu" sortOrder="20" resource="Magento_Backend::content"/>         
    <add id="Vendor_AdminMenu::second_menu" title="My Sub Menu" module="Vendor_AdminMenu" sortOrder="1" action="adminmenu/index/index"         parent="Vendor_AdminMenu::admin_menu" resource="Magento_Backend::content" />     
</menu>

</config>

Now, here is a short description of the variables used in the above code:

id: The unique identifier of the custom admin menu.

title: The title that will be shown in the admin menu.

Module: in this case, Vendor_AdminMenu

sortOrder: Prioritize the placement of the custom admin menu.

resource: the rule to identify which admin users can access the custom admin menu.

Action: Set the link to the admin controller.

parent: Used to define the menu upon which the custom menu depends.

Launch the SSH Terminal

Open SSH terminal and go to the root directory of the Magneto 2 store and run the following commands:

php bin/magento setup:upgrade 
php bin/magento setup:di:compile
php bin/magento cache:clean
php bin/magento cache:flush

Now, go to the admin panel of your Magento 2 store, and you will see the new admin menu My Menu with the nested My Sub Menu .

That’s it. Enjoy Coding