I need to generate a user token and before I can I'm asked to link my eBay account to my developer account, but the login won't accept my eBay name/password. (They're correct, and I can still log into eBay.)
I'm new here, and I did this once for a user token yesterday, when the eBay login worked. But you need one for the sandbox and one for the production environment, right? I'm wondering if this could be a third-party cookie issue.
Any help appreciated...