M2E Pro source code package is released on packagist.org and github.com. You can use Composer to install the Extension from one of these resources.

This way of Module installation/upgrade requires technical skills.

Installation

Follow the next steps to install M2E Pro:

Step 1. Install Composer Installer. It automatically installs/upgrades those modules which are provided as dependent packages in the Composer project of your Magento.

Step 2. Provide the Composer Installer as a dependence on the composer.json file of your project. Use the following command:

composer require m2epro/magento2-extension

Step 3. To complete the process, run the commands below:

php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy

That's it! M2E Pro has been successfully installed.

Provide the initial configuration of the selected Integration and enjoy your sales on Marketplaces via M2E Pro.

This instruction does not contain any recommendations for enabling the Maintenance Mode in your Magento. The decision is up to you.

If you face any issues during the installation process, read this article to find the solution.

Upgrade

If your M2E Pro was initially installed from Magento Marketplace, please follow the instructions from this article to upgrade the Module via Composer.

Please complete the next steps to upgrade M2E Pro:

Step 1. Run the command: 

composer update m2epro/magento2-extension

It will automatically download all updated files and upgrade your Module automatically.

Step 2. To complete the process, run the commands below:

php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy

Our Congratulations! You have successfully upgraded your M2E Pro.

This instruction does not contain any recommendations for enabling the Maintenance Mode in your Magento. The decision is up to you.

If you face any issues during the upgrade process, read this article to find the solution.