Find the host key on your Webex site
From your Webex site, select Calendar and then click the title of the meeting that you're hosting.
You can see the host key in the Meeting Information section of the meeting details.
If you copy the meeting tables by clicking the Copy icon, the host key won't be copied.
Find the host key in Microsoft Outlook
From your Microsoft Outlook calendar, open the meeting that you scheduled using the Webex Scheduler.
Select Webex Preferences.
In the Cisco Webex Scheduler panel, select Advanced settings.
Your host key appears in the Host Information section.