To protect users and domains from abusive behavior, Google sets limits for Google Calendar use.
These limits are higher than the typical activity of Calendar users, so most users won't exceed them. However, if you exceed the limits, your Calendar might become read-only for a few hours. When it’s read-only, you can still view events but you can't create or edit them.
Note: Calendar keeps events indefinitely as long as the user does not delete them.
Errors related to use limits
If you exceed Calendar use limits, you might get messages such as:
Unable to save event—You reached the limit for the number of events you can edit.
Calendar usage limits exceeded—Results from an API call.
There was a problem saving your changes. Please try again in a few minutes—Message is followed by more information describing what limit was reached.
Avoid exceeding limits
To avoid exceeding Calendar limits, follow these guidelines.
Create too many events
Create too many calendars
Send too many invitations to external guests
Email too many guests via Google Calendar events
Share calendars with too many users
*This number is true only if a user’s limits are fully replenished. If a user does any actions in this table regularly, then the actual use limit might differ.
Limits for free & trial accounts
Additional usage for subscription accounts
Some Calendar use limits are automatically increased when:
- Your domain has cumulatively paid at least USD $100 (or equivalent), and
- At least 60 days have passed since achieving that payment threshold.
If you purchased your domain from Google, the amount required to increase your limits is USD $100 plus the cost of your domain. It may take several days after meeting both criteria for the limits to be raised.