Q: Why am I getting this error when trying to list using Sku Fetch and Wise Lister?
A: The error message would mean that your eBay keys in Wise Lister have expired or are no longer valid.
Please log into your Wise Lister account and go to eBay API Keys on the left.
Click the Disconnect button. It will then change and say "Connect".
Click Connect. You'll be redirected to log into eBay to authorize the application.
Complete the process. Once done, you'll be returned to Wise Lister.
Try listing another item. Thanks :)