You can use this code to display the html conent 

Keeping your product images up to date is important for any online store. Sometimes, during imports or catalog updates, a product might end up without an image. Magento 2 doesn’t show a built-in list of these products, but you can easily find them using a small SQL query.

in this script we will mention two ways to add an attachment to an email in Magento2, one is for Magento 2.4.6 and less and the another one for Magento < 2.4.6 or 2.4.8 in specifc 

first of all override the templatebuilder clas

in the di.xml add his 

    <preference for="Magento\Framework\Mail\Template\TransportBuilder" type="Vendor\Module\Rewrite\Magento\Framework\Mail\Template\TransportBuilder"/>

now add this class (Magento 2.4.8)

Expose system configuration value to be used in CMS Pages/Blocks or email template

Subject: How to Get Amazon SP-API client_id, client_secret, and refresh_token

Step 1: Login and Start App Registration

• Go to: https://sellercentral.amazon.com.mx
• Login with your developer/seller account.
• Navigate to: Apps & Services → Develop Apps → Add new app client .

php ./vendor/bin/magento-patches status
php composer update magento/quality-patches
php ./vendor/bin/magento-patches apply  {id}

Example :
php ./vendor/bin/magento-patches apply  MDVA-19640

 

🧪 Checking Magento 2 Custom Code for PHP 8.2 Compatibility

As of Magento 2.4.6+, core support for PHP 8.2 is stable — but ensuring your custom modules and themes are compatible is crucial before upgrading your environment.

This guide walks you through using PHPCompatibility + PHP_CodeSniffer to audit your code for PHP 8.2 issues.

🛠️ Step 1: Install PHPCompatibility & PHPCS

Start by requiring the tools via Composer:

When working with Magento's EAV model, it's common to reorganize attributes across different attribute sets or groups — especially when customizing product forms in the admin panel. Here's a quick tip on how to move an attribute to the same group as another attribute and place it right next to it.

Let’s say you have: