Google sets use limits to protect Google Calendar users, admins, and organizations from abusive behavior. These limits are higher than the typical activity of Calendar users. If a user in your organization performs an action too many times, they won't be able to do that same action again for a few hours.
- Unable to save event. This message means that the user reached the limit for the number of events that they can edit.
- There was a problem saving your changes. Please try again in a few minutes. A description of the limit reached follows this message.
Limits for free & trial accounts
To protect users from spam, we don't publicize exact limits. However, subscription account limits are higher than limits for trial accounts or the legacy free edition of G Suite. If needed, you can end your trial and convert to a paid account. For details, go to Set up Google Workspace billing.
Add usage to paid accounts
Your use limits don't increase immediately after you convert to a paid account. To increase your trial limits to subscription account limits:
- Buy your domain.
- Pay the cumulative equivalent of at least USD 100 more than the cost of your domain. For details, go to Make a manual payment or pay early.
- Wait 60 days.
60 days after you reach the payment threshold, your use limits increase.
|Limit||Time to replenish|
|If users create more than 100,000 events during a short period, they might lose the ability to edit events for a few hours.||Possibly several months|
|Do not create more than 60 calendars in a short period.||Possibly several hours|
|To prevent spamming, Calendar limits the number of invitations a user can send to external guests. If a user sends 10,000 invites to people outside of their primary or secondary domain in a short period, the user might not be able to send external invitations for a few hours.||Possibly several days|
To prevent spamming, a user can send about 2,000 emails to external guests using the Email guests feature.Using this feature with users in your primary or secondary domain does not count toward this limit.
|Within 24 hours|
|Do not share calendars with many users in a short period (750 shares).||Possibly several hours|