Prerequisites
=============


System requirements
-------------------

**Amazon Pay** extension for OpenMage requires you to have a valid **Amazon Payments** account and a webserver running an OpenMage store instance with the following conditions met:

* OpenMage 19.4.4 or higher
* cURL for PHP
* DOM / XML for PHP
* valid SSL certificate

.. important::
   This extension works with OpenMage 19.4.4 or higher. Please refer to :ref:`troubleshooting-older-magento` to find out how to install it on the legacy versions of Magento.