---
title: "How to Quickly Create Ad Hoc Multi-Host Meetings"
description: "You can quickly add co-hosts to your Booking Calendar link without altering your default settings."
url: "https://help.staticso2.com/human-engagement/booking-calendars/sharing-embedding/how-to-quickly-create-ad-hoc-multi-host-meetings"
---

[How to Quickly Create Ad Hoc Multi-Host Meetings](https://www.youtube-nocookie.com/embed/YNuUIk-ACOY?wmode=opaque)

You can quickly add **co-hosts** to your **Booking Calendar link without altering your default settings**.

This method is **ideal** when you need to include additional co-hosts to a meeting instantly.

## How Availability Works

[Section titled “How Availability Works”](#how-availability-works)

The availability for the added co-hosts is determined by two factors:

1. From where the **Booking Calendar** retrieves **Availability**:

   * [**The hosts’ profile settings.**](https://help.staticso2.com/profile-management/availability/configuring-profile-level-availability-for-booking-calendars)
   * [](https://help.staticso2.com/profile-management/availability/configuring-profile-level-availability-for-booking-calendars)**[**Within the specific Booking Calendar.**](https://help.staticso2.com/human-engagement/booking-calendars/booking-settings/configuring-availability-for-specific-booking-calendars)**

2. Any **busy time** marked in the co-host’s connected calendar.

**Example:** This feature is useful if, for instance, a hiring manager needs a senior team member to join a technical interview. It allows the manager to **instantly** **create a once-off panel booking link**. This link includes both the host and the required co-host, without the overhead of setting up a separate Booking Calendar.

***

### Prerequisite

[Section titled “Prerequisite”](#prerequisite)

Before you begin, ensure that the co-host’s email address belongs to a user with an assigned seat/ license on the same OnceHub account.

***

### How to Quickly Add Co-Hosts to Your Booking Link

[Section titled “How to Quickly Add Co-Hosts to Your Booking Link”](#how-to-quickly-add-co-hosts-to-your-booking-link)

Follow the steps below to add co-host(s) by modifying the Booking Calendar link.

## Step 1: Get the Base Booking Calendar Link

[Section titled “Step 1: Get the Base Booking Calendar Link”](#step-1-get-the-base-booking-calendar-link)

1. Click **Booking Calendars** from the left-navigation menu.
2. Click the **Share** button to the right of the desired calendar.
3. Click **Copy & close** in the pop-up window to copy the base booking link.

## Step 2: Modify the Booking Calendar Link

[Section titled “Step 2: Modify the Booking Calendar Link”](#step-2-modify-the-booking-calendar-link)

1. Paste the booking link into a browser or text editor.

2. Add the following parameter at the end of the link: **`?co_hosts=`**

3. You can include one or more co-hosts:

   * **Single Co-host:** To add one co-host, append the co-host’s email address after the parameter. **Example:**

     ```plaintext
     https://oncehub.com/bookwithgreg?co_hosts=stacy@example.com
     ```

   * **Multiple Co-hosts:** To add more than one co-host, append multiple email addresses, separated by commas, after the parameter. **Example:**

     ```plaintext
     https://oncehub.com/bookwithgreg?co_hosts=stacy@example.com,john@example.com
     ```

## Step 3: Share the Updated Booking Calendar Link

[Section titled “Step 3: Share the Updated Booking Calendar Link”](#step-3-share-the-updated-booking-calendar-link)

1. Copy the modified booking link.
2. Share this link with your guests using the same method as a regular Booking Calendar link.

***

### Frequently Asked Questions

[Section titled “Frequently Asked Questions”](#frequently-asked-questions)

**Q: What happens if I include an invalid or unauthorized email address in the *`?co_hosts`*`=` parameter?**

* **A:** OnceHub will **automatically ignore** the invalid or unauthorized email address. The Booking Calendar will still **load successfully**, but only include the valid co-hosts.

**Q: Do ad hoc co-hosts remain on a meeting when it is rescheduled?**

* **A:** Yes, when a meeting is rescheduled, all **ad hoc co-hosts remain** on the rescheduled meeting.