I’m trying to setup a webapp configuration in Auth0 to work with Kibana from OpenDistro, but I have been unable to get it working. I’m hoping someone here can help.
In that tab you should find a option to download metadata so you can give that metadata to the service provider configuration (in this case Kibana). In addition, you’ll also have the identifier used by the Auth0 tenant (the Issuer value) which should be the entity identifier of the IdP in terms of that YAML configuration.
The error page is still in the Kibana side; it’s common for error information to be surfaced very generically in terms of user facing pages, but server-side logs to have additional information. I confess I have no experience with Kibana OpenDistro, but have you checked if there’s any additional details in server-side logs?