**Override block** Create the file `app/code/Vendor/Module/etc/di.xml` and add the following: <?xml version="1.0"?> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../vendor/magento/framework/ObjectManager/etc/config.xsd"> <preference for="Magento\Checkout\Block\Onepage\Success" type="Vendor\Module\Block\Success"/> </config> Create the file `app/code/Vendor/Module/Block/Success.php` and add the following: <?php namespace Vendor\Module\Block; class Success extends \Magento\Checkout\Block\Onepage\Success { public function getOrder() { return $this->_checkoutSession->getLastRealOrder(); } } **Override template** Create the file `app/code/Vendor/Module/view/frontend/layout/checkout_onepage_success.xml` and add the following: <?xml version="1.0"?> <page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd"> <body> <referenceBlock name="checkout.success" template="Your_Module::checkout/success.phtml"/> </body> </page> Create the file `app/code/Vendor/Module/view/frontend/templates/checkout/success.phtml` and add the following: <?php /** @var $block \Vendor\Module\Block\Success */ ?> <div class="checkout-success"> <?php if ($block->getOrderId()):?> <?php if ($block->getCanViewOrder()) :?> <p><?php echo __('Your order number is: %1.', sprintf('<a href="%s" class="order-number"><strong>%s</strong></a>', $block->escapeHtml($block->getViewOrderUrl()), $block->escapeHtml($block->getOrderId()))) ?></p> <?php else: ?> <p><?php echo __('Your order # is: <span>%1</span>.', $block->escapeHtml($block->getOrderId())) ?></p> <?php endif; ?> <!-- BEGIN VENDOR_MODULE CUSTOM --> <p><?php echo __('You ordered %1 items.', (int) $block->getOrder()->getTotalQtyOrdered()) ?></p> <!-- END VENDOR_MODULE CUSTOM --> <p><?php /* @escapeNotVerified */ echo __('We\'ll email you an order confirmation with details and tracking info.') ?></p> <?php endif; ?> <?php echo $block->getAdditionalInfoHtml() ?> <div class="actions-toolbar"> <div class="primary"> <a class="action primary continue" href="<?php /* @escapeNotVerified */ echo $block->getUrl() ?>"><span><?php /* @escapeNotVerified */ echo __('Continue Shopping') ?></span></a> </div> </div> </div> That's about it, hope I could be of any help. ### Edit You probably want to refresh your checkout/success page a lot, so to tackle that problem, go to file `app/code/Magento/Checkout/Controller/Onepage/Success.phtml` and change $session->clearQuote(); to // $session->clearQuote(); This way, your quote won't get cleared when you open the page. **Updated At :- 13th Sep, 2022** **Alternative Method (optional)** we can also override the template as like below one. Note that I used Magento 2.4 version. I doesn't tested with below Magento 2.4 versions. > Vendor/Module/view/frontend/layout/checkout_onepage_success.xml <?xml version="1.0"?> <page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd"> <body> <referenceBlock name="checkout.success"> <action method="setTemplate"> <argument name="template" xsi:type="string">Vendor_Module::checkout/success.phtml</argument> </action> </referenceBlock> </body> </page>