If your site is behind a firewall, for example during testing, you will need to configure your firewall to allow ChannelUnity to call into it.
ChannelUnity requires that the shopping cart site you connect into is publicly accessible.
The following list is subject to change. You should review this from time to time.
You should no longer whitelist these IP addresses:
To allow ChannelUnity to access your site you should whitelist the IP addresses listed: