A maximum of 250 attendees can join Amazon Chime meetings scheduled by users with Amazon Chime Pro permissions. If you want to use auto-call, you must include
meet@chime.aws in the meeting invite.
However, meeting invitations can include a maximum of 300 attendees. Amazon Chime supports that number because some attendees decline the meeting, some don't join the meeting, and some drop out of the meeting.
Auto-call doesn't count as an attendee. Distribution lists count as single attendees unless you expand them. Also, you must expand distribution lists if you want to use auto-call.
If you invite more than 300 individual users:
Amazon Chime disables auto-call and notifies the meeting organizer.
Attendees must join the meeting manually at the scheduled time.
Attendess do not see the meeting name or scheduled ending time.
The Attendees panel and its subsections, such as Invited and dropped, can display a combined maximum of 300 items. If the panel reaches the 300-item limit, or 250 attendees connect to the meeting, new attendees receive a "meeting full" notice and can't join the meeting.
For more information about running large meetings, see
Conducting large meetings using Amazon Chime
