Set a certain synchronization interval from Webex Productivity Tool (Outlook plug-in) to the site example.webex.com and to the Webex Meeting Desktop app.
Could you give us more details on the exact issue that the customer is encountering? We'd encourage the customer to move to the Webex Scheduler Outlook Add-in if syncing to the Webex site is super important.
There really is no synchronization interval as everything in the area is based on notifications and web-hook callbacks.
There has been no response in over 9 months, so closing as Not likely in implement. We can always reopen if someone provides additional information.