> For the complete documentation index, see [llms.txt](https://docs.readonlyrest.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.readonlyrest.com/develop/examples/impersonation/external-services-mocks-ui.md).

# Defining external services mock configurations

External services mock is used to simulate the response of existing authentication or authorization service like LDAP. You don't need to create a user account for configuration testing. You will only need to define users (and their associated groups) that would normally be returned by the external services, listed in test settings.

![Auth mock](/files/vlK6oyvi4JrC8d4o3OmE)

After clicking add/edit user buttons (1), you will see a dialog with an option to add (2) or remove (3) user from an external service mock

![Add/edit external mock service](/files/SA20Q82OMYr9QgNic7eL)


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