I generated an authorization address (https://auth.ebay.com/oauth2/authorize?client_id=xxxx&response_type=code&redirect_uri=xxxxx&scope=ht...) for a customer. After the customer logged in and confirmed, the webpage showed: {"error_id":"invalid_request","error_description":"Input request parameters are invalid.","http_status_code":400}. The customer had successfully authorized another store through a similar authorization address prior to this. What could be causing this issue?
I am using an authorization URL generated by the eBay Java SDK.
