Make sure OAuth is enabled for your keys otherwise enable it.
Content Egg plugin does not store any personal data of eBay's users. If this is the case, the developer may apply for exemption from receiving eBay marketplace account deletion/closure notifications. For more information, see the Opting Out of eBay Marketplace Account Deletion/Closure Notifications.
Campaign IDis visible in the
Campaignslist in your ePN account.
Set this parameter only if you want to send traffic through third party affiliate networks with eBay support. Read more: How to find your deeplink.
You can work with multiple eBay locales geolocation IP detection similar to how it works in Amazon module.