How to add a participant to a session's schedule

Use this guide when you need to register a participant as an attendee of a specific session, adding it to their personal schedule.

What you'll need before starting

What you need	Where to get it
Session ID	Returned as `id` in the response of `POST /api/v2/sessions/set`, or retrieved via `GET /api/v2/sessions/getSession`
Participant account ID	`GET /api/v2/account/get` or `GET /api/v2/participants/{eventId}/list`

Request

Bash

curl -X POST "https://your-event-domain.com/api/v2/sessions/addVisitor" \
  -H "Authorization: Bearer your_api_key_here" \
  -F "event_id=7" \
  -F "id=42" \
  -F "account_id=18631"

Notes

The participant must already be registered for the event — they cannot be added as a session attendee without an active event registration
If the participant is already scheduled for this session, a 400 error is returned
If the session has a time conflict with another entry in the participant's schedule, the addition will fail
Exhibitor owner accounts cannot be added as session attendees via this endpoint