The following values can be obtained with /userinfo api, but screen name cannot be obtained.
{“sub”:“twitter|*”,“nickname”:“test”,“name”:“test”,“picture”:“https://pbs.twimg.com/profile_images/*.jpg",“updated_at”:"2020-07-14T01:35:00.534Z”}
How can I get the screen name？
Hello @naoki and welcome to the community 
When you make the call to authorize, are you including the screen name as one of the open id claims? OpenID Connect Scopes
If you are, could you tell me if the user profile inside your Auth0 dashboard contains the screen name, and what property that name lives under?
Please can you assist on how to retrieve the twitter screen name using Auth0
