How to display CMS block below order summary section on checkout page?

If you want to show some text or message using CMS block below Order Summary section on Checkout Page, then follow below steps.

Step 1 : Create file like app/code/Magemonkeys/Belowordersummary/registration.php

<?php

    \Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Magemonkeys_Belowordersummary',
    __DIR__
    );

<?php

\Magento\Framework\Component\ComponentRegistrar::register(

\Magento\Framework\Component\ComponentRegistrar::MODULE,

'Magemonkeys_Belowordersummary',

__DIR__

);

Step 2 : Create file like app/code/Magemonkeys/Belowordersummary/etc/frontend/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Checkout\Model\CompositeConfigProvider">
        <arguments>
            <argument name="configProviders" xsi:type="array">
                <item name="cms_block_config_provider" xsi:type="object">Magemonkeys\Belowordersummary\Model\CmsConfigProvider</item>
            </argument>
        </arguments>
    </type>
    <type name="Magemonkeys\Belowordersummary\Model\CmsConfigProvider">
        <arguments>
            <argument name="blockId" xsi:type="string">checkout-cms-block</argument>
        </arguments>
    </type>
</config>

<?xml version="1.0"?>

<item name="cms_block_config_provider" xsi:type="object">Magemonkeys\Belowordersummary\Model\CmsConfigProvider</item>

</argument>

</arguments>

</type>

<argument name="blockId" xsi:type="string">checkout-cms-block</argument>

</arguments>

</type>

</config>

Step 3 : Create file like app/code/Magemonkeys/Belowordersummary/etc/module.xml

<?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="Magemonkeys_Belowordersummary" setup_version="1.0.0"></module>
</config>

<?xml version="1.0"?>

</config>

Step 4 : Create file like app/code/Magemonkeys/Belowordersummary/Model/CmsConfigProvider.php

<?php
    
    namespace Magemonkeys\Belowordersummary\Model;

    use \Magento\Checkout\Model\ConfigProviderInterface;
    use Magento\Framework\View\LayoutInterface;
    use \Magento\Store\Model\StoreManagerInterface;

    /**
    * Class ConfigProvider
    * @codeCoverageIgnore
    */
    final class CmsConfigProvider implements ConfigProviderInterface
    {

        private $layout;
        private $storeManager;
        private $cmsBlock;

        public function __construct(LayoutInterface $layout, StoreManagerInterface $storeManager, $blockId)
        {
            $this->layout = $layout;
            $this->storeManager = $storeManager;
            $this->cmsBlock = $blockId;
        }

        public function getStoreId()
        {
            return $this->storeManager->getStore()->getId();
        }

        public function constructBlock($blockId)
        {
            $storeId = $this->getStoreId();
            $block = $this->layout->createBlock('Magento\Cms\Block\Block')->setBlockId($blockId)->setStoreId($storeId)->toHtml();
            return $block;
        }

        public function getConfig()
        {
            $cmsBlock = '';
            $blockId = $this->cmsBlock;
            if (isset($blockId) && $blockId != '') {
                $cmsBlock = $this->constructBlock($blockId);
            }
            return ['cms_block' => $cmsBlock];
        }
    }

<?php

namespace Magemonkeys\Belowordersummary\Model;

use \Magento\Checkout\Model\ConfigProviderInterface;

use Magento\Framework\View\LayoutInterface;

use \Magento\Store\Model\StoreManagerInterface;

/**

* Class ConfigProvider

* @codeCoverageIgnore

final class CmsConfigProvider implements ConfigProviderInterface

{

private $layout;

private $storeManager;

private $cmsBlock;

public function __construct(LayoutInterface $layout, StoreManagerInterface $storeManager, $blockId)

{

$this->layout = $layout;

$this->storeManager = $storeManager;

$this->cmsBlock = $blockId;

}

public function getStoreId()

{

return $this->storeManager->getStore()->getId();

}

public function constructBlock($blockId)

{

$storeId = $this->getStoreId();

$block = $this->layout->createBlock('Magento\Cms\Block\Block')->setBlockId($blockId)->setStoreId($storeId)->toHtml();

return $block;

}

public function getConfig()

{

$cmsBlock = '';

$blockId = $this->cmsBlock;

if (isset($blockId) && $blockId != '') {

$cmsBlock = $this->constructBlock($blockId);

}

return ['cms_block' => $cmsBlock];

}

Step 5 : Copy file sidebar.html in your theme from vendor/magento/module-checkout/view/frontend/web/template/sidebar.html

Add this code in your sidebar.html

<div class="opc-block-shipping-information">
    <div data-bind="html: window.checkoutConfig.cms_block"></div>
</div>

</div>

That’s it…

Now, you can check your Checkout Page. It will show your text or message which is set in static block as displaying below Order Summery section.

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