How Multi-Host Event Types Work

Multi-host event types let bookers schedule meetings that require more than one team member. Learn how primary and additional hosts work, why the distinction matters, and what happens when someone books a slot.

01 Jul 2026 · by Peter Grillet

Some meetings need more than one person from your team. A sales demo might need a rep and a solutions engineer. A client review might need an account manager and a partner. An interview might need a recruiter and a hiring manager.

A standard booking link only checks one person’s calendar. Multi-host event types check everyone who needs to attend, and only show times when all required hosts are available.

That means the person booking does not need to coordinate calendars manually, and your team does not need to chase availability after a time has already been chosen.
Multi-host booking page example


What happens when someone books

When multi-host is enabled on an event type:
  1. calendr checks availability for every required host — primary and additional.
  2. Only overlapping free slots are shown on the public booking page.
  3. When a booking is confirmed, all required hosts are added to the meeting.
  4. One calendar invite is sent to the attendee, with a single meeting link (Google Meet or Microsoft Teams, depending on your event type settings).
  5. Calendar events are created for the hosts who need them, without sending duplicate invites to the attendee.
On the booking page, the primary host is shown first, followed by additional hosts in alphabetical order.

Primary host vs additional hosts

When you create or edit a multi-host event type, you choose two groups of people:
Multi-host settings

Primary host (one person)

The primary host is the person the booking is “owned” by. There can only be one primary host per event type.

The primary host is responsible for:
  • The main calendar event and attendee invite
  • The meeting link (Google Meet or Microsoft Teams)
  • Booking notifications configured on the event type
  • The booking page identity — their name appears first to the person booking
Choose the person whose calendar should be the source of truth for the meeting. This is usually the person leading the conversation: the account owner, partner, recruiter, or meeting chair.

Additional hosts (one or more people)

Additional hosts are team members who must also be available and attend the meeting.

They:
  • Must be free at the same time as the primary host for a slot to appear
  • Are included in the meeting when it is booked
  • Can update their own availability for that event type (without changing the event type’s core settings)
  • Do not receive a separate attendee invite or generate a second meeting link
Choose everyone else who must be in the room for the meeting to happen.

Why the distinction exists

It might seem simpler to treat every host the same, but meetings work best when one person clearly owns the booking.

Without a primary host, calendr would not know:
  • Whose calendar should create the official invite and meeting link
  • Who receives booking notifications
  • Which calendar settings (Google vs Microsoft, forwarding rules) should apply
If every host were treated equally, you could end up with:
  • Duplicate calendar invites for the same meeting
  • Multiple different meeting links (for example, two Google Meet URLs)
  • Confusion about who the booker is actually meeting with
The primary/additional split keeps the experience clean for the person booking — one invite, one link, one clear lead contact — while still making sure every required team member is available and included.

How to set up a multi-host event type

  1. Create a new event type, or edit an existing one.
  2. Enable Multi-host meetings in the event type settings.
  3. Choose a Primary host — select exactly one team member.
  4. Choose Additional hosts — select everyone else who must attend.
  5. Set availability as usual. Each additional host can also manage their own hours for that event type.
  6. Save the event type and share the booking link.
Tip: The primary host should be the person whose calendar is connected to the video meeting type you want (Google Meet on Google Calendar, or Teams on Microsoft 365). If you use Google Meet, pick a primary host with Google Calendar connected. If you use Teams, pick a primary host with Microsoft 365 connected.

Availability and calendars

Availability

A time slot only appears if every required host is available:
  • The primary host
  • All additional hosts you selected
If one person is in another meeting or outside their working hours, that slot will not be shown.

Additional hosts can update their own availability for a multi-host event type without needing access to change the whole event type.

Calendars and meeting links

When a booking is confirmed:
  • The primary host’s calendar creates the main event and meeting link
  • The attendee receives one invite with that link
  • Other calendars connected to the primary host (or set up for forwarding) may receive host-only copies, without generating new links or re-inviting the attendee
This keeps the meeting link consistent if the booking is rescheduled later.

What bookers see

On the public booking page, bookers will see:
  • The event name and description
  • A “Meeting with” list showing all hosts
  • The primary host listed first
  • Additional hosts listed below, in alphabetical order
  • A calendar showing only times when everyone is free
Bookers do not need to know which host is primary vs additional. They simply pick a time that works for the whole group.

Frequently asked questions

Can I change the primary host later?
Yes. Edit the event type and select a different primary host. New bookings will use the new primary host’s calendar and settings. Existing bookings are not changed automatically.

Can the primary host also be listed as an additional host?

No. The primary host is always included automatically. Additional hosts are only the other people who need to attend.

What if an additional host updates their availability?

Only their own availability changes. The event type settings, primary host, and other hosts stay the same.

What if the primary host’s calendar is disconnected?
Bookings may fail to create calendar events or meeting links until their calendar is reconnected. Choose a primary host with an active calendar connection.

Is multi-host the same as round robin?
No. Multi-host requires all selected people to be available at the same time. Round robin assigns the booking to one person from a pool. Use multi-host when everyone needs to attend together.

Related help articles

Team Event Type fallback options (and when to use each)

Team Event Types let you control how bookings are routed across your team. Choose between Round robin, Default assignee, or Visitor select, and use fallback behavior to avoid losing bookings when a team member is unavailable.

How to reschedule an event

Reschedule any booking in seconds from either the confirmation email or the link inside the calendar event, then choose a new available time and send an updated invite automatically.