Google Calendar API release notes

The following changes to events from Gmail take effect on May 30, 2024:

• Events from Gmail use fromGmail instead default as the value for the eventType field. You can filter by this new event type using the events.list() and events.watch() methods.
• Events from Gmail use the email address of the email recipient as the event organizer instead of unknownorganizer@calendar.google.com.
• You can only update the event properties, such as reminders, color ID, visibility, status, and extended properties of Event resources with the event type fromGmail.

For details, see the Calendar API Events reference documentation.

The following change takes effect on June 3, 2024:

For batch operations on Event resources, a batched item returns an HTTP 409 Conflict status code if the batch operation can't successfully execute this item due to conflicts with other requested batched items.

Suggested action: Exclude all successfully finished and failed batched items and retry remaining items in a different batch operation or by using single event operations.

For more information, see Handle API errors.

The following changes will take effect on March 11, 2024:

• The use of event type filters will be considered when reviewing quota increase requests. Before you request a quota increase, make sure you specify the event types you need as a parameter for your application.
• Both events.list and events.watch will use the same default event type filter.
• To help with error handling, improved error messages will be returned when unsupported operations are attempted on special event types, such as working location, out-of-office, and focus time events.

For more information, refer to the following:

• Manage focus time, out of office, and working location events
• Manage quotas

Starting today, all existing and new out of office events will be updated to set the organizer to unknownorganizer@calendar.google.com instead of the Calendar owner. It may take 2-3 weeks for this change to fully roll out.

From now, we require conferenceData to be consistent with conferenceData.conferenceSolution.key.type; meaning only Google Meet calls can have conferenceData.conferenceSolution.key.type set to hangoutsMeet. All 3P video conference providers are expected to set conferenceData.conferenceSolution.key.type to addOn.

We stopped auto-populating Meet for API calls (such as Events.insert) to prevent Meet conferences being added unintentionally via 3rd parties.

Service accounts created on or after March 2, 2020 are only able to invite guests using domain-wide delegation of authority.

Starting on January 7, 2019, notifications and reminders using the sms method type will be ignored. The API calls setting such notifications and reminders will still succeed and modify all the other fields.

Since Calendar offers in-app notifications, you can still get notified, regardless of your device or connection. For more information see Google Calendar SMS notifications to be removed.