Recently, I build a website using Yahoo oauth, here is the oauth site: https://developer.yahoo.com/oauth/guide/about.html
After I finish the oauth, I succeed in logining Yahoo by using Yahoo US account.But I fail to login Yahoo by using Yahoo Japan account and Yahoo US told me "This ID is not yet taken. Are you trying to register for a new account?". Is anything wrong with oauth document?
Or what is the difference between Yahoo Japan oauth and Yahoo US oauth?Here is the following links:
http://developer.yahoo.co.jp/other/oauth/flow.html
Could somebody help me out?