Thank you for posting your question, @mherzig !
I appreciate you describing the border context and the steps you have already verified.
After investigating what’s available, I want to check with you if the following workaround will address your use case:
In your post-user-registration Action, you can initialize the Auth0’s Management API client and call the GET /api/v2/users/{id}/organizations endpoint to retrieve the organization the user registered.
Working with the Management API in Actions requires some steps on your side and these resources can be relevant for you:
- our node.js client library on GitHub
- a “how to” article on how to work with the Management API in Actions.
There is a product request feature (on accessing the organization ID from the pre/post user registration flow) that you could upvote.
Please let me know if you are any other questions on this topic I could help with!