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Collective event types are ideal when a booker needs to meet with several team members at once. Cal ID finds a time that works for everyone and puts them all on the same booking.
In a collective event, all selected co-hosts must attend the meeting. Cal ID only offers slots where every co-host is free, so the booker always lands on a time that works for the entire group.

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When to use a collective event

Reach for a collective event whenever the meeting is pointless unless a specific group of people is in the room:
  • A sales call that needs both a sales executive and a sales manager.
  • A technical consultation that needs a product expert and a support engineer.
  • An interview panel with several interviewers.
  • A client meeting where every named team member has to attend.
If instead you want one person from a pool to take each booking, use round-robin scheduling.

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Before you create a collective event

Collective availability is only as reliable as the setup behind it. Run through this checklist before you publish the booking link — most “no slots available” reports trace back to one of these items.
1

Check your team setup

  • The team exists in Cal ID.
  • Every required member has been added to the team and has accepted the invitation.
  • Each member can sign in to their own Cal ID account.
  • Members are assigned to the right team and event type.
2

Check each host's calendar

Ask every co-host to confirm that:
  • Their calendar integration is connected and active — not expired or revoked.
  • The correct calendar is selected for conflict checking.
  • Events on that calendar are actually being read for availability.
  • Busy events are blocking the time they should block.
3

Check each host's schedule

  • The member has an active availability schedule.
  • Their working hours cover the times you expect to be bookable.
  • Their time zone is correct.
If a co-host’s calendar is disconnected or points at the wrong calendar, Cal ID cannot see their conflicts. The result is either missing slots or — worse — a slot offered at a time that host is genuinely busy.

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Create a collective event

1

Open Event Types

Go to Event Types at https://cal.id/event-types.
2

Create a team event type

Click New, choose the team the event belongs to, and enter a name.
The event type name appears on the booking page, so name it for the booker — “Solution Review”, not “Panel v2”.
3

Select Collective

Set the assignment type to Collective, then click Create.
4

Pick your co-hosts

Open the new event type, go to the Team tab, and choose exactly which team members should co-host this event collectively.
Team tab of a team event type with the assignment type set to Collective and several team members selected as co-hosts

Deciding who joins every booking

5

Set availability (optional)

By default, Cal ID evaluates availability based on each member’s individual schedule. You can instead put forward a common schedule for this specific event type, which overrides each member’s availability for this event only.
Availability tab of a collective event type with a common schedule chosen from the dropdown instead of each member's default schedule

Overriding member schedules for one event

6

Configure the rest of the event

Set duration, location, buffers, booking limits, booking questions, and workflows exactly as you would on any other event type.

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How collective availability is calculated

You have two ways to decide which hours a collective event can be booked in. With either option, Cal ID still removes any slot where a co-host has a conflicting calendar event, and still applies buffers, minimum notice, and booking limits.

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Worked example: overlapping availability

Say a collective event has three co-hosts with these schedules: The only stretch where all three are free is 11:00 AM – 4:00 PM. That is the widest window a booker can ever see. Anything outside it is removed before existing meetings, buffers, and limits are even considered — so the real bookable time is usually narrower still.
Adding a co-host can only ever shrink the bookable window, never widen it. If a collective event is starved of slots, the fastest fix is usually to drop a non-essential co-host rather than to fiddle with settings.

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How a booker books a collective event

  1. The booker opens your event’s booking link.
  2. Cal ID shows only the slots where every co-host is free.
  3. The booker picks a date and time and fills in the booking questions.
  4. The booker confirms.
  5. Cal ID creates one booking with every co-host and the booker on it.
  6. Everyone on the booking receives the confirmation and calendar event, according to your calendar and workflow settings.

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Why no slots are available

If your booking page shows “No slots available”, work through these checks in order. The first two account for most cases.
A host who was never added to the event type cannot contribute availability — and a host added by mistake will silently shrink it.
  1. Open the collective event type.
  2. Go to the Team tab.
  3. Confirm every required host is assigned, and remove anyone who should not be.
  4. Save, then reload the booking page.
A collective event needs a window where every host is available. It is easy to end up with no overlap at all:
  • Member A: 9:00 AM – 5:00 PM
  • Member B: 2:00 PM – 4:00 PM
  • Member C: 10:00 AM – 1:00 PM
Member B and Member C never overlap, so this event can never show a slot. Adjust the schedules until the required hosts share available time, or switch the event to a common schedule.
A single busy event on one host’s calendar removes the slot for the whole group.
  1. Ask the host to open their connected calendar.
  2. Look for an event covering the missing time.
  3. Check whether that event is marked Busy rather than Free.
  4. Reschedule or free up the event if appropriate.
  5. Reload the booking page.
An expired or misconfigured calendar connection makes availability behave unpredictably.
  1. Go to Settings → Calendars at https://cal.id/settings/my-account/calendars.
  2. Check that the integration is still active.
  3. Reconnect the calendar if it has been disconnected.
  4. Confirm the correct calendar is selected for conflict checking.
A 60-minute event needs 60 uninterrupted minutes free for every host. If the widest shared gap is 30 minutes, no slot can appear.Either shorten the event duration, or open up more time on the hosts’ schedules.
Restrictions stack, and on a collective event they stack across every host. Review:Temporarily relaxing one of these is the quickest way to identify the culprit.
The booking page renders slots in the viewer’s time zone. A slot that looks missing may simply have moved. Set the time zone selector on the booking page to the booker’s time zone before concluding that availability is broken.

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Common collective event issues and solutions

Likely causes: narrow overlapping availability, existing meetings on one or more hosts’ calendars, buffers between meetings, minimum notice, or a booking limit already reached.Fix: compare all co-hosts’ schedules side by side and identify the real shared window — see the worked example above. Then decide whether to widen a schedule, remove a co-host, or relax a limit.
Likely causes: that member’s calendar is not connected, the calendar holding the conflict is not selected for conflict checking, or the member is not actually assigned to the event type.Fix:
  1. Confirm the member is listed on the event type’s Team tab.
  2. Check their calendar integration is active.
  3. Verify which calendars are selected for conflict checking — a conflict on an unselected calendar is invisible to Cal ID.
  4. Reconnect the calendar if needed, then test again.
Fix:
  1. Confirm the member is assigned to the collective event type.
  2. Check that their Cal ID account uses the correct email address.
  3. Verify their calendar integration is connected.
  4. Check the calendar itself — the event may have arrived without an email.
  5. Ask them to check spam, updates, and filtered mail.
Fix:
  1. Confirm the booking was actually created — check Bookings.
  2. Check the email address captured on the booking for typos.
  3. Open the booking and review the confirmation that was sent.
  4. Ask the booker to check their spam and updates folders.
  5. Confirm the calendar invitation was included in the confirmation.
Likely causes: the wrong members are assigned, or the event type was created under the wrong team.Fix:
  1. Open the collective event type and go to the Team tab.
  2. Review the selected hosts.
  3. Remove anyone added by mistake and add the correct members.
  4. Save your changes.
  5. Create a test booking to confirm the right hosts appear.
Changing the host list does not rewrite bookings that already exist. Reschedule or recreate any affected booking so the correct hosts are on the calendar event.

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Collective vs round-robin

Both are team event types, but they solve opposite problems. Collective = multiple hosts attend one meeting. Round-robin = one host is picked from several.
Need both at once — say, a manager on every call plus one rotating rep? Use a round-robin event type and mark the manager as a fixed host.
Use collective events whenever a group of team members needs to attend the same meeting. Cal ID finds a time that works for everyone, so you don’t have to coordinate schedules by hand.

Round-robin scheduling

Distribute bookings across a rotating pool instead of gathering everyone.

Team availability

Review how shared and individual schedules combine for your team.

Related topics

Round-Robin SchedulingManaged Event Types for TeamsTeam AvailabilityInternal Team MeetingTeams in Cal ID