Pre-user-registration throw "Extensibility error"

I have added “Domain Based Registration” action to the pre-user-registration trigger. And it is work fine but last time it is always throw the “Extensibility error” in the registration flow. All other without any customisation.

In the logs inside Auth0 dashboard I found an exception that looks like:

{
  "action_name": "Domain Based Registration v1",
  "response": {
    "error": {
      "message": "Cannot read properties of undefined (reading 'split')",
      "name": "TypeError",
      "stack": "TypeError: Cannot read properties of undefined (reading 'split')\n    at exports.onExecutePreUserRegistration (/data/io/node16/5357b479-0b08-40d2-85c6-29bb28e31743/webtask.js:5:46)\n    at /data/io/0b8f48245cde1e21775f8deb6eaea6698910fb0a.js:5:857\n    at processTicksAndRejections (node:internal/process/task_queues:96:5)"
    },
    "stats": {
      "action_duration_ms": 3
    }
  },
  "started_at": "2024-11-08T10:44:07.562Z",
  "ended_at": "2024-11-08T10:44:07.584741188Z"
}

As I understand it is something inside the action that was developed by Auth0.
How can I fix that?

Hi @denaikG

Welcome to the Auth0 Community!

Can you share the content of the Domain-Based Registration Configuration Action with me via DM?

Thanks
Dawid

Hello. Yes, I can share it with you. But where I can do that? Can you write to me in DM?

I am facing the same problem.
Have you done it?

Hi @anhht,

Can you send me your account name and tenant name via DM? We are still investigating this issue.

Thanks
dawid

The problem is in the Domain Based Registration v1 code. I replaced it with the custom code for checking domains, and the error has not occurred.

Yeah, I am totally agree with you. Can you share your custom code please?

Do you have an estimate for when it will be fixed?