Upgrading your Magento 2 store is super important. It helps keep your online shop fresh with cool new features, better security, and fixes for pesky bugs. You’ve got to make sure your e-commerce platform is always up-to-date!

Sometimes, upgrading your Magento 2 store isn’t as easy as pie. You might hit a snag called the “Magento 2 Upgrade Data Not Working” issue.

In this detailed guide, we’re going to dig deep into why this problem happens and give you clear, easy-to-follow steps to fix your Magento 2 store. Let’s get your online shop back on the right path!

Understand the Issue

Sample Upgrade Data Script in Magento 2:


namespace Vendor\Module\Setup;

use Magento\Framework\Setup\ModuleDataSetupInterface;

use Magento\Framework\Setup\ModuleContextInterface;

use Magento\Framework\Setup\UpgradeDataInterface;

class UpgradeData implements UpgradeDataInterface


    public function upgrade(ModuleDataSetupInterface $setup, ModuleContextInterface $context)



        if (version_compare($context->getVersion(), '2.0.1', '<')) { // Your data upgrade code goes here } $setup->endSetup();



Once your data upgrade script is ready, you can execute the following command to initiate the data upgrade:

bin/magento setup:upgrade

This command will run your data upgrade script and, if necessary, update the database schema.

Before we jump into the fixes, it’s crucial to understand the issue at hand. When you start a data upgrade in Magento 2, the goal is to align your database schema and data with the demands of the new version. However, if something goes wrong in this process, it can create inconsistencies in your data and disrupt how your store functions.

We will look into typical issues concerning Magento 2 data upgrades and offer solutions to fix them.

Encountering Error Messages During Upgrade

One of the most frequent problems you might face during a data upgrade is error messages. These errors can be confusing and might puzzle you. Here’s how to handle them:

  • Log Files: Examine your Magento log files situated in var/log for error messages. These logs can offer valuable clues about what went awry.
  • Database Backup: Before trying any solutions, make sure you have a recent backup of your database. This way, you can restore it if something goes wrong.
  • Review Data Upgrade Scripts: Examine your personalized data upgrade scripts thoroughly. Confirm they are accurately written without any syntax errors. Pay close attention to the XML files and PHP scripts you have designed.
  • Check Dependencies: Make sure your custom extensions or third-party modules are compatible with the intended Magento version. Incompatibility can result in upgrade failures.

Incorrect Data Migration

If your data isn’t transferring correctly, it can cause problems such as missing product details, customer data, or orders. To fix this:

  • Data Mapping: Take a careful look at the data mapping between your old and new database schemas. Make sure that fields and tables are correctly matched.
  • Data Reindexing: Following the data upgrade, reindex your store using the command: bin/magento indexer:reindex. This can resolve problems related to missing or incomplete data.

Performance Problems After Upgrade

At times, a data upgrade can cause performance problems in your Magento store, leading to slow page load times or high server resource usage. To enhance performance:

  • Cache Management: Clear and refresh your cache by running bin/magento cache:flush and bin/magento cache:clean. Outdated cache can lead to performance issues.
  • Redis or Varnish: Think about implementing caching solutions like Redis or Varnish to enhance your store’s performance. Ensure they are configured properly.
  • Server Resources: Verify that your server meets the resource requirements for the upgraded Magento version. If necessary, allocate more CPU, RAM, or storage to ensure smooth operation.
  • Third-party Modules: Review and update any third-party modules and extensions. Incompatibilities or outdated extensions can affect the performance of your store.

Stalled on the “Please Wait” Screen

In certain situations, your Magento store might become stuck at the “Please Wait” screen while upgrading. To resolve this:

  • Browser Cache: Clear your browser cache and cookies. Occasionally, cached files can trigger this problem.
  • Check Console for Errors: Open your browser’s developer console (usually F12) and look for any JavaScript errors. Address them as necessary.
  • Server Resources: Confirm that your server has ample resources to handle the upgrade process. High server load or limited resources can trigger the “Please Wait” issue.

Seek Help from the Magento Community and Support

If you’ve tried all the troubleshooting steps and still can’t get your data upgrade to work, consider reaching out to the Magento community or Magento support. There could be specific issues related to your setup that require expert assistance.

Common Reasons: Magento 2 Upgrade Data Not Functioning

File Permissions: Wrong file permissions can limit Magento’s access to essential files and folders, hindering the upgrade process.

Resource Conflicts: Clashes with custom modules, themes, or third-party extensions can disturb the data upgrade process, causing errors and inconsistencies.

Insufficient Memory: Upgrading Magento 2 might demand more memory than what’s allocated in your server’s PHP settings. This can lead to crashes or incomplete upgrades.

Database Errors: Problems existing within your database or misconfigured settings can obstruct the data upgrade process, causing it to fail.

Steps to Troubleshoot

1.      Verify File Permissions

Start by making sure that your Magento files and directories have the right permissions. Use SSH to go to your Magento root directory and run the following commands:

find var generated vendor pub/static pub/media app/etc -type f -exec chmod g+w {} +
find var generated vendor pub/static pub/media app/etc -type d -exec chmod g+ws {} +

2.      Turn off Custom Modules and Themes

To determine if custom modules or themes are causing conflicts, temporarily deactivate them during the upgrade process. You can achieve this by editing the app/etc/config.php file and setting the status of the custom module or theme to 0 (disabled).

'modules' => [
	// ...
	'Vendor_Module' => 0, // Disable a custom module

3.      Raise the memory limit

Ensure that your PHP settings allocate enough memory for the upgrade. You can achieve this by editing your php.ini file or using an .htaccess file to increase memory limits in the following manner:

php_value memory_limit 512M

4.      Look for issues within your database.

Execute commands for repairing and optimizing the database to fix any issues:

php bin/magento setup:db-data:upgrade
php bin/magento setup:db-schema:upgrade
php bin/magento setup:db-rollback
php bin/magento setup:db-data:rollback
php bin/magento indexer:reindex

Additional Considerations

While resolving the current issue is vital, it’s equally crucial to embrace best practices to reduce the chances of future problems:

  • Always create a backup of your store before starting any upgrades or significant modifications. This guarantees you can restore your data in case of unexpected problems.
  • Think about setting up a staging environment that mirrors your production store. This enables you to test upgrades and modifications without impacting your live site.
  • Verify that all third-party extensions and themes are compatible with your Magento version before proceeding with the upgrade.
  • Stay updated by regularly checking Magento’s official website and community forums for announcements, patches, and solutions to known issues.


Overcoming Magento 2 data upgrade errors requires a systematic and meticulous approach. By following a step-by-step process, businesses can ensure a smooth transition during their Magento upgrade. Evrig Solutions, with its expertise in Magento upgrade services, plays a pivotal role in this journey. Their proficient team understands the intricacies of data upgrade errors and employs effective solutions to resolve them. With Evrig Solutions’ dedicated Magento upgrade service, businesses can confidently navigate the challenges, ensuring a seamless transition and maximizing the potential of their Magento 2 platform.