List of Dashboard Errors
Could not authenticate with service
This error message may appear after attempting to connect a google or microsoft account:
1. Your Microsoft 365 is on a GCC High tenant. One way to tell if you company is on Microsoft 365 “GCC high” is that your login goes to login.microsoftonline.us (.us instead of .com). If this is case, please email support@calendarbridge.com and ask them to enable GCC high access on your account.
2. Your Office 365 administrator is blocking third-party oauth apps such as CalendarBridge. Please email your IT administrator to see if that is the case.
Calendar account exists on another user’s account
This error message may appear after attempting to connect a google or microsoft account:
Re-authentication needed
The need to re-authenticate with Google or Microsoft is typically triggered by a change of your Google or Microsoft password. If Re-Authentication is necessary, the following alerts will be shown on your dashboard:

Temporary Connection Issues
Rarely you may see a message that there is a temporary connection issue.
Rate limiting
Google and Microsoft impose limits on the number of events that can be added/edited during an interval of time. (The number of events and the interval of time is intentionally vague in their documentation). If your account exceeds the limits, your sync will be temporarily disrupted until Google or Microsoft lift the restriction (again, the amount of time is not well defined in their documentation).
Unless your calendar has a very high amount of activity (e.g., if you are syncing many calendars into 1), rate limiting should not occur during normal operation (only when creating or editing sync connections).
Rate limiting is most likely to occur when:
If this persists for more than 24 hours, please contact support.
- editing a sync connection; or
- creating and deleting multiple sync connections involving the same calendar within a short period of time.
- you have other syncing software running that is creating a loop. Please make sure you are not running other syncing software in parallel with CalendarBridge.
