This issue has been resolved. There is no action required on the part of ChannelAdvisor clients.

Our Engineering team is currently investigating issues sending product data to eBay. As a result of this issue, you may see the following errors:

"An error occurred processing the sale prices for a variation listing" OR
"The Condition value could not be mapped to a valid eBay option. Please select one of the available Condition values and post the item again."

This alert will be updated as more information is available.