I would write your own user registration page. The one built into Identity is not good for production use cases. See this [doc](https://gluu.org/docs/ce/user-management/scim2/#supporting-a-user-registration-process-with-scim).

It's not clear can you explain more ? thank you

For example, the page you used to register for your account on this portal.. its a custom registration page. The data gets sent into our Gluu Server. And then when you want to access this app, you authenticate via our Gluu Server. The documentation referenced above teaches you how to implement a similar process. This is better than using the default registration page you are referencing.

Currently its hardcoded actually. Not the best design. I opened a ticket to address it in a future version: [https://github.com/GluuFederation/oxTrust/issues/1795](https://github.com/GluuFederation/oxTrust/issues/1795) In the meantime, perhaps add an email activation sequence which will break up the process and result in the user not going directly into oxTrust. We updated our doc to explain how to add the email activation sequence: [https://gluu.org/docs/ce/user-management/user-registration/](https://gluu.org/docs/ce/user-management/user-registration/)