> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pads4.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Invite participants and visitors

> Add colleagues and external visitors to a booking in PADS4 Workspace, so they receive an invitation and, for visitors, a QR code for check-in.

Add people to a booking so that they receive an invitation. You can invite colleagues as participants and guests from outside your organization as external visitors.

## Add participants

1. In the booking window, go to **Participants**.
2. Select a person from your contact list, or enter the person manually.
3. Select **Save** to save the booking.

Each participant receives an email that tells them about the invitation.

## Add external visitors

External visitors are guests from outside your organization. This function uses a Visitor Management System (VMS).

**1. Add a visitor**

In the booking window, go to **External Visitors**, and then select the **+** button.

**2. Enter the visitor details**

Enter the required information for the visitor.

**3. Save the visitor**

Select **Save**.

**4. Save the booking**

Select **Save** in the booking window.

## Participants and capacity

For a common space, participants count toward the number of available spots. See [Book a common space](https://docs.pads4.com/modules/workspace/workspace-web-application/booking-a-common-space).

## Related

* [Book a space](https://docs.pads4.com/modules/workspace/workspace-web-application/booking-a-space)
* [Booking reminders](https://docs.pads4.com/modules/workspace/booking-reminders.md)


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