Invite groups to calendar events

You can use Groups to quickly invite lots of people to an event at once. When you invite groups, you can have up to 100,000 guests.  

Important: To prevent spam, Google Calendar limits the number of invitations a user can send to external guests. This limit varies depending on the action, and is usually between 100–300 guests.

Members of the group see the event on their calendar. People who join the group later find the event in their calendar. People who leave the group have the event removed.

1. On your computer, enter the email address for the group the same way you'd add any guest.
2. To view the responses of group members in the guest list, click the Arrow  next to the group .
3. If you don't find the group icon and arrow, you don't have permission to view the group's member list.

Tip: If you have "View members" access to a Group and create a Group event, each member of the group will receive an individual invitation email to the event.

If you're the event organizer or have edit rights to the event, you can view the responses of people in the group. 

The guest list updates to match the group membership for upcoming events, but it won't change after an event has passed. If your event has more than 200 guests, group membership changes will take 24 hours to update.

When you create a recurring event, the guest list will update to match any changes in the group. If new group members have email notifications turned on, they'll receive an email notification for all future recurring events.

Learn how to turn off email notifications for new events.

If you created a recurring event before August 2017: To make sure your Calendar guest list continues to match group membership in the future, cancel and recreate the event. 

Important: To follow these steps, you must have edit rights to an event of 200 people or more.

When you create an event for large groups, you can view and download guest’s replies, email address, and any added notes. Events for large groups can't be transferred to another owner or moved to a different calendar.

1. On your computer, open the event on the original calendar from which the event was created.
2. Select Export guest responses to Sheets. Google Sheets will make a list from the most current RSVP list. 
3. To update the information, repeat step 2 above. The export will create a new tab at the beginning of the original Sheet with the most up to date information.