Authorize.Net

Authorize.Net Error: User authentication failed due to invalid authentication values. If you are using the plugin in the sandbox mode, please ensure that you are using a separate sandbox account (and not your live account) for testing, i.e. Please make sure it is not your live account but the one that is on sandbox.authorize.net.  The testing guide linked below states that...

How to use Authorize.Net AIM emulation? If you are using our free Authorize.Net extension and want to use AIM emulation method, you will need to add a few lines of code as written below to your theme's functions.php or in a custom plugin or wherever you have other custom functions written for your site. Please make...