Find the Host Key on Your Webex Site
From your Cisco Webex site, select Meetings 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.
Find the Host Key in Microsoft Outlook
From your Microsoft Outlook calendar, open the meeting that you scheduled using the Webex Scheduler.
In the Webex section of the ribbon, click Host Information.
Click OK to close the box.