@jerdog I have an open support ticket which one of your engineers has been working with me on. Happy for you to use that if it cuts time debugging! Ticket is #44440
Ruth
I tried now with a new profile from an American site i.e. withou the “eu”: https://testestukune.auth0.com/authorize
I am stuck on the same problem! 
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@RCheesley / @Serginho_Cintra / @blake - we are looking into this and will get with you as soon as we see what’s going on
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From the other thread:
oauth2 json user id path : sub
oauth2 json username path : nickname
oauth2 json name path : name
oauth2 json email path : email
Quite different from the identities.[].id posted above!
Yes - things have likely changed from post #1 in terms of required settings
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@RCheesley and @Serginho_Cintra
The key part that we were missing is that we need to specify a scope when we ask Auth0 for user info.
I’ll update the original post with the correct values you need.
And thanks @jerdog for the help 
!
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Fantastic, thanks so much for all the help guys, hugely appreciated!
Ruth
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Sorry @charchar, I don’t understand how you overcame the “error message with no other options” problem.
I’m stopped just at this point…
Hello!
If the user is new to Discourse, then, after authentication, a window appears with the data of the new user. Is it possible to somehow create a Discourse user automatically, without showing this window? The user is already created on Auth0 …
It is not currently possible, but we hope to add it soon
https://meta.discourse.org/t/openid-connect-authentication-plugin/103632/56?u=david
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Is the same situation with the discourse-saml plugin?
The SAML plugin creates the user automatically. We’re planning to make the same functionality available in other plugins.
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关于这个问题有更新吗？
我有一个网站正在使用 auth0 的 oauth2-basic 进行认证。这是唯一的认证方式，本地登录已禁用。新用户无法在 Discourse 端创建，且登录会静默失败，因此无法添加新用户。目前尚不清楚这个问题是从 beta9 升级开始的，还是几周前切换到 oauth2-basic 时出现的。
目前来看，即使需要点击“创建您的账户”屏幕也可以接受。
编辑：一个主题组件阻止了新用户弹窗的显示。不过，我仍然希望跳过这一步。
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了解以下设置会有所帮助：将 logout redirect 设置为 https://SITENAME.auth0.com/v2/logout（或 https://SITENAME.auth0.com/v2/logout?returnTo=SOME_URL_THAT_IS_IN_ALLOWED_LOGOUT_URLS），这样在 Discourse 中登出时，也会从 Auth0 登出。
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现在所有插件都已支持！
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已成功按照指南使用 Auth0 配置了 SSO，一切运行正常。只是，当 Auth0 中的 avatar_url 更新后，Discourse 端并未同步更新。我已尝试为管理员账户和普通账户分别进行登录和注销操作。需要说明的是，头像在注册时设置正确，但之后在 Discourse 上不会更新。我可以在日志中看到调试输出，且 user_json 中确实包含了更新后的 avatar_url。
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@blake 能否请您告知这是否是一个已知问题，或者我的设置中是否有需要修正的地方？
我最终禁用了 oauth2_basic 插件，并按照此处描述的 Auth0 规则执行了 SSO 流程：https://blog.leog.me/discourse-sso-with-auth0-e49486d0294a
我进行的一项更改是将 sso_secret 存储在规则配置中，而不是存储在应用程序的元数据中。
同时包含 client_id
https://auth0.com/docs/logout/redirect-users-after-logout