The issue resulting in delays between Cisco Spark Hybrid Calendar and the Google API Service is now resolved.
Posted 11 days ago. Aug 06, 2017 - 16:02 UTC
Cisco Spark Hybrid Calendar Service with Google Calendar is experiencing delays in accessing Google API Services. We anticipate recovery of delayed updates to commence after midnight PDT. Some customers will see delays in onboarding new Hybrid Calendar users, and delayed updates to @spark and @webex meeting invitations.