Add booking attendee - Automate.ax

calcom.addBookingAttendee adds one attendee to an existing booking.

automations/add-booking-attendee.automation.ts

import { automation, markSignificant } from "automate.ax"
import { calcom } from "automate.ax/calcom"

export default automation("Add booking attendee", () => {
  markSignificant(
    calcom.addBookingAttendee({
      bookingUid: "booking-uid",
      name: "Grace Hopper",
      email: "grace@example.com",
      timeZone: "America/New_York",
    }),
  )
})

Input

Pass these fields:

Field	Type	Required	Description
`bookingUid`	`string`	Yes	—
`name`	`string`	Yes	The name of the attendee.
`timeZone`	`string`	Yes	The time zone of the attendee.
`phoneNumber`	`string`	No	The phone number of the attendee in international format.
`language`	`string enum`	No	The preferred language of the attendee. Used for booking confirmation. Default: `"en"`.
`email`	`string (email)`	Yes	The email of the attendee.

Output

Returns an object with these fields:

Field	Type	Required	Description
`name`	`string`	Yes	—
`email`	`string`	Yes	—
`displayEmail`	`string`	Yes	Clean email for display purposes
`timeZone`	`string`	Yes	—
`language`	`string enum`	No	—
`absent`	`boolean`	Yes	—
`phoneNumber`	`string`	No	—
`id`	`number`	Yes	—
`bookingId`	`number`	Yes	—

Cal.com enforces account role, plan, and availability requirements. Provider rejections surface as structured action failures with the HTTP status and any Retry-After delay.