I was wondering if there is a way for me to send a parameter back to my server after a new user registers in Keycloak.

For example, we have a checkbox that the user can check if he wants to receive newsletter from our website, and I wanted to send that value back to us.

I tried setting it as a query parameter on the redirect_uri param, it gets sent on the request, but it isn't posted back to us.

Is there a defined way to accomplish this?

Thank you again!

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