If you have a special case for a single user that needs different shipping rates than the standard calculation methods, you can override the shipping amount for that buyer by manually configuring the shipping rate for that order in your eBay account. This is only available before the buyer has completed the eBay Checkout process. In order to apply a special rate for the transaction:

* Go to the seller's My eBay at ebay.com and find the specific transaction
* Click the "Send Invoice To Buyer" option
* Select the approrpiate shipping option and enter the amount for shipping/postage

The buyer will receive an email from eBay with a link for the eBay Checkout. When they follow that link and go through the checkout process, the special shipping rate will be applied to the transaction. That shipping carrier option and rate will be imported with the order details into your ChannelAdvisor order record.