Magento 2.x - Menu not showing for custom role in custom module

Question

I am working Magento 2.x custom module. I have setup ACL rules for this but it is not showing Menu of custom module for custom user roles.

acl.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
    <acl>
        <resources>
            <resource id="Magento_Backend::admin">
                <resource id="technologymindz::base" title="TM Tag Manager" sortOrder="10" >
                    <resource id="technologymindz_googletagmanager::googletagmanager" title="General Settings" sortOrder="10" />
                </resource>
            </resource>
        </resources>
    </acl>
</config>

menu.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../Backend/etc/menu.xsd">
    <menu>
        <add id="technologymindz::base" title="TM Tag Manager" module="Technologymindz_GoogleTagManager" sortOrder="10" resource="Technologymindz_GoogleTagManager::sample"/>

        <add id="technologymindz_googletagmanager::googletagmanager" title="General Settings" module="Technologymindz_GoogleTagManager" sortOrder="10" parent="technologymindz::base" action="technologymindz_googletagmanager/items/" resource="Technologymindz_GoogleTagManager::items"/>
    </menu>
</config>

custom module menu listing in resource list and setting is saved.

But when login and check for custom user role, it is not showing.

Index Controller is using permission

protected function _isAllowed()
{
 return $this->_authorization->isAllowed('technologymindz::base');
}

I have used static content deploy and cache flush

Answer 1

Change your acl code as below

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
    <acl>
        <resources>
            <resource id="Magento_Backend::admin">
                <resource id="Technologymindz_GoogleTagManager::sample" title="TM Tag Manager" sortOrder="10" >
                    <resource id="Technologymindz_GoogleTagManager::items" title="General Settings" sortOrder="10" />
                </resource>
            </resource>
        </resources>
    </acl>
</config>

Answer 2

If your resource name is Technologymindz_GoogleTagManager::items then you need to check same in your _isAllowed() method

protected function _isAllowed()
{
    return $this->_authorization->isAllowed('Technologymindz_GoogleTagManager::items');
}

Edit: I also recommend to set id and resource attributes in menu.xml with same values Technologymindz_GoogleTagManager::items

Answer 3

The resource attribute on the menu items must match the id attribute from the resource tag in acl.xml

Your resource ids are technologymindz::base and technologymindz_googletagmanager::googletagmanager in acl.xml but your in the menu file you are using technologymindz_googletagmanager::googletagmanager and Technologymindz_GoogleTagManager::items.
Chance the ones in menu.xml to match the ones in acl.xml. Also make sure you match the case sensitivity.