Once you've scheduled your webinar and invited panelists, you can select it from your Calendar list and add attendees. You can add attendees individually or import multiple attendees from one or more CSV files.
Sign in to your Webex site, then click Calendar.
Select your webinar from the list.
In the Attendees section of your webinar information, click Edit.
To add attendees one by one, click Add attendees, then enter each attendee's name and email address.
To import multiple attendees from a CSV file, click Import attendees.