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If your callback URL is valid, when an authorization error occurs, the returns the appropriate error and state parameters to your callback URL. In cases where your callback URL is invalid, your application will display the default generic Auth0 error page. Alternatively, you can customize the error pages. To learn more, read Custom Error Pages. To find the default page name for the generic error page, see Use Version Control to Manage Your Universal Login Pages.

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Display

The generic error page displays the following information if you have configured the associated fields in your Tenant Settings.
FieldDescription
Friendly NameName of your company
Logo URLURL of your company logo
Support EmailEmail address of your company’s support team
Support URLURL of your company’s support page

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Parameters

The Authorization Server returns parameters appended to the URL as a query string.
ParameterDescription
client_idIdentifier of the Auth0 application.
connectionConnection used at the time of error.
langLanguage set for use at the time of error.
errorError code of the error.
error_descriptionDescription of the error.
trackingIdentifier used by Auth0 to find errors in internal logs.
Parameters presented vary depending on the error type and are specific to the request. For example, if the request did not contain a client_id and resulted in an error, no will be returned by the error page.

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