You can customize the registration form on which registrants provide information for a particular event. When customizing the form, you can choose which standard options you want to appear on the form and create custom options.
An event host can change the information that appears on the default enrollment form when scheduling an event on the Customize Registration Questions page.
From the customer view in https://admin.webex.com , go to Services .
Under Meeting , select Sites , choose your site, and then click Configure Site .
Under Webex Events (Classic), select Registration Form .
Under Standard Options , select each option that you want to require on the registration form.
(Optional) Under My Custom Options , add custom options to the form by selecting any of the following:
Select the check box for the options you want to make required on the form.
Select Save .