URGENT: Production tenant deleted / missing from tenant list — returns 404 "Unknown host", need recovery

Summary: Our production tenant has disappeared and all our users are locked out. It is no longer in our tenant list in the dashboard, and the hostname now returns a 404. We need help recovering it urgently.

Tenant: referral-trail-production.eu.auth0.com (EU region)

Symptoms:

  • Every endpoint on the tenant returns HTTP 404 with body “Unknown host: referral-trail-production.eu.auth0.com, including https://referral-trail-production.eu.auth0.com/.well-known/openid-configuration.
  • The tenant is no longer listed in our Auth0 dashboard tenant switcher.
  • Our other tenant, referral-trail-develop.eu.auth0.com, is completely unaffected (returns HTTP 200 on the same endpoint).

Impact: Full production outage — no user can log into our application, and our backend Management API calls against this tenant are also failing.

What we’ve already checked:

  • DNS resolves correctly to Auth0’s edge, so the 404 is being returned by Auth0 itself.
  • The develop tenant working while production is gone tells us this is isolated to the one tenant.
  • Missing from the tenant list + serving a 404 suggests the tenant has been deleted (not merely suspended).

What we need help with:

  1. Can a deleted tenant be recovered, and is there a time window for this?
  2. What are the exact steps, and what does Auth0 need from us (verification, etc.) to restore it?
  3. Would the tenant’s users, connections, and application configuration be restored intact?
  4. Is there a way to confirm when and by which account it was deleted?

SPA Application Client ID (for identification): 3oO3mPaA08mhqVsV0MA17hVWyuxnOpV1

I can share our account/owner details privately with an Auth0 staff member — happy to DM. This is a live production outage affecting all our users, so any expedited guidance is hugely appreciated. Thank you.