Body
Environment
Google Calendar
Issue
There are several usage limits for Google Calendar, including the number of calendars you can create in a short period.
Resolution
To protect users from spam, Google doesn't publicize the exact limits for certain actions taken within a short period, but they have published some. You can find those below:
- Total event invitations you can send to external (non-UM) guests: 10,000 invites
- Your ability to send external invitations will be throttled. You might not be able to send any invitations to people outside U-M for a few hours.
- Total events you can create: 100,000 events
- Your ability to create many events is temporarily reduced. You also might not be able to edit events for a few hours.
- Total emails to external guests using the "Email guests" feature on the event: About 2,000 emails
- Total secondary calendars you can create: No more than 60 calendars
Overall, Google may throttle your account's ability to create events or calendars, among other actions, or even lock your account if you take too many actions within a short period. This is because Google interprets your actions as "spammy." We do not know the exact length of time Google will throttle or lock your account for, but it can range from several hours to months.
Additional Information
These are not limits for your use of Google Calendar overall, only for actions taken within a short period.
Need additional information or assistance? Contact the ITS Service Center.