Click the ‘Add a Channel…’ option in the channels drop-down box:

On the next page, select the Newegg option:

Then click the ‘Add Channel’ button:

On the next page, enter a name for the channel and also select the storeview data you would like to use for this channel if you are a Magento user, then click the Next button:

On the next page you will see the following screen. On this page, enter your Newegg Seller ID and also enter your Seller Account Secret Key, which you will need to contact Newegg support in order to get the secret key for your account:

Once you have added these details, you will then be able to link the products in ChannelUnity to existing Newegg listings: