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

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# On booking no show updated

> Subscribes when a booking participant's no-show state changes.

`calcom.onBookingNoShowUpdated` subscribes when a booking participant's no-show state changes.

```ts automations/on-booking-no-show-updated.automation.ts theme={null}
import { automation, markSignificant } from "automate.ax"
import { calcom } from "automate.ax/calcom"

export default automation("On booking no show updated", () => {
  const event = calcom.onBookingNoShowUpdated()
  markSignificant(event)
})
```

## Scope

Omit `scope` for personal bookings. To watch one team-owned Collective or Round Robin event type, pass `{ type: "team", teamId, eventTypeId }`. Team scope requires a Cal.com Teams plan or higher and an API key owned by a team admin or owner.

## Event

| Field                        | Type                        | Required |
| ---------------------------- | --------------------------- | -------- |
| `createdAt`                  | `string (date-time)`        | Yes      |
| `payload`                    | `object`                    | Yes      |
| `payload.attendees`          | `object[]`                  | Yes      |
| `payload.attendees[].email`  | `string (email)`            | Yes      |
| `payload.attendees[].noShow` | `boolean`                   | Yes      |
| `payload.bookingId`          | `integer`                   | No       |
| `payload.bookingUid`         | `string`                    | Yes      |
| `payload.message`            | `string`                    | Yes      |
| `triggerEvent`               | `"BOOKING_NO_SHOW_UPDATED"` | Yes      |

Additional provider fields are preserved.

Automate.ax creates and maintains the Cal.com webhook, verifies `x-cal-signature-256`, and deduplicates provider retries. Use `calcom.onEvent` when one automation should receive every supported Cal.com event.