.. _registration_token: Registration ------------ (See FAQ :ref:`faq_registration_code`) The registration token can be used to create a registration code for a user. This registration code can be sent via postal mail to the user, so that the user can use this registration code as a second factor to login to a portal. After a one single use, the registration code is deleted and can not be used a second time. The length and the contents of the registration code can be configured using the :ref:`enrollment_policies` *registrationcode_length* and *registrationcode_contents*. .. note:: The registration code can only be enrolled via the API to provide automated smooth workflow to your needs. For a more detailed insight see the code documentation :ref:`code_registration_token`.