generated: '2026-09-07'
method: searched
source: https://developers.cvent.com/docs/webhooks/overview; https://developers.cvent.com/docs/webhooks/technical-requirements;
  https://developers.cvent.com/docs/webhooks/messages/messages and the 39 per-message reference pages
asyncapi_published: false
note: Cvent publishes a documented webhook surface but no AsyncAPI document. No AsyncAPI is authored here — the
  catalogue below is the provider’s own message list, recorded as a Webhooks surface.
transport:
  protocol: HTTPS
  method: POST
  direction: Cvent → subscriber endpoint
  endpoint_shape: POST /<your-endpoint-path>/<EventType>/<IdOfWebhookMessage>
  requirements:
  - Subscriber endpoint must be SSL-secured
  headers:
  - Request-ID
  - 'User-Agent: Cvent-Webhooks'
  - Authorization
  - 'Content-Type: application/json'
  validation: On activation Cvent sends a GET to the configured endpoint and requires HTTP 200; if no response is
    returned the validation GET is retried every ten minutes.
  auth_methods:
  - Token-based (token ≤ 150 characters)
  - OAuth (authorization endpoint, client id, client secret, scopes)
  - Salesforce OAuth (technical account id, organization id)
  auth_recovery: Cvent attempts automated auth recovery on failure; persistent failure can temporarily disable the
    integration and trigger integration alert emails.
envelope:
  fields:
  - eventType
  - messageTime
  - messageStub
  - message[]
  example:
    eventType: <EventType>
    messageTime: '2024-05-08T15:05:03.617Z'
    messageStub: <IdOfWebhookMessage>
    message:
    - key: value
rest_hooks:
  note: 'Separately from the UI-configured webhooks above, the REST API exposes a Hooks tag (4 operations: create/list/get/delete
    contact hooks at /contacts/hooks) whose createContactHook operation declares a real OpenAPI callback — contactTransaction
    — secured by CallbackApiKeyAuth or CallbackBasicAuth and expecting your service to answer with contact fields
    that overwrite Cvent’s copy.'
  callback_operation: contactTransactionCallback
  no_retry_on:
  - 400
  - 404
  source: openapi/_original/cvent-openapi.json
summary:
  message_types: 41
  groups: 8
groups:
- name: attendee-emails
  description: Messages related to email communications with attendees.
  count: 7
- name: attendees
  description: Messages related to event attendees, including registrations, session attendance, and participation
    status changes.
  count: 12
- name: contacts
  description: Messages related to contact management.
  count: 6
- name: event-sessions
  description: Messages related to event sessions.
  count: 3
- name: event-speakers
  description: Messages related to event speakers.
  count: 3
- name: events
  description: Messages related to event changes.
  count: 3
- name: manual
  description: Messages generated through manual sync operations.
  count: 5
- name: meeting-requests
  description: Messages related to meeting requests.
  count: 2
events:
- group: attendee-emails
  event: added to invitation list
  slug: added-to-invitation-list
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/added-to-invitation-list
- group: attendee-emails
  event: declines invitation
  slug: declines-invitation
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/declines-invitation
- group: attendee-emails
  event: email bounces
  slug: email-bounces
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/email-bounces
- group: attendee-emails
  event: email opened
  slug: email-opened
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/email-opened
- group: attendee-emails
  event: email sent
  slug: email-sent
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/email-sent
- group: attendee-emails
  event: resubscribes to event email
  slug: resubscribes-to-event-email
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/resubscribes-to-event-email
- group: attendee-emails
  event: unsubscribed from event email
  slug: unsubscribed-from-event-email
  docs: https://developers.cvent.com/docs/webhooks/messages/attendee-emails/unsubscribed-from-event-email
- group: attendees
  event: abandons registration
  slug: abandons-registration
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/abandons-registration
- group: attendees
  event: invitee guest order created
  slug: invitee-guest-order-created
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/invitee-guest-order-created
- group: attendees
  event: marked as no show
  slug: marked-as-no-show
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/marked-as-no-show
- group: attendees
  event: marked event participant
  slug: marked-event-participant
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/marked-event-participant
- group: attendees
  event: marked session no show
  slug: marked-session-no-show
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/marked-session-no-show
- group: attendees
  event: marked session participant
  slug: marked-session-participant
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/marked-session-participant
- group: attendees
  event: registered for event
  slug: registered-for-event
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/registered-for-event
- group: attendees
  event: registered for session
  slug: registered-for-session
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/registered-for-session
- group: attendees
  event: registration cancelled
  slug: registration-cancelled
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/registration-cancelled
- group: attendees
  event: registration modified
  slug: registration-modified
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/registration-modified
- group: attendees
  event: session registration cancelled
  slug: session-registration-cancelled
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/session-registration-cancelled
- group: attendees
  event: substituted into event registration
  slug: substituted-into-event-registration
  docs: https://developers.cvent.com/docs/webhooks/messages/attendees/substituted-into-event-registration
- group: contacts
  event: confirm email opt in
  slug: confirm-email-opt-in
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/confirm-email-opt-in
- group: contacts
  event: contact created
  slug: contact-created
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/contact-created
- group: contacts
  event: contact deleted
  slug: contact-deleted
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/contact-deleted
- group: contacts
  event: contact edited
  slug: contact-edited
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/contact-edited
- group: contacts
  event: contact opts out of emails
  slug: contact-opts-out-of-emails
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/contact-opts-out-of-emails
- group: contacts
  event: opts back in to emails
  slug: opts-back-in-to-emails
  docs: https://developers.cvent.com/docs/webhooks/messages/contacts/opts-back-in-to-emails
- group: event-sessions
  event: session created
  slug: session-created
  docs: https://developers.cvent.com/docs/webhooks/messages/event-sessions/session-created
- group: event-sessions
  event: session deleted
  slug: session-deleted
  docs: https://developers.cvent.com/docs/webhooks/messages/event-sessions/session-deleted
- group: event-sessions
  event: session modified
  slug: session-modified
  docs: https://developers.cvent.com/docs/webhooks/messages/event-sessions/session-modified
- group: event-speakers
  event: speaker created
  slug: speaker-created
  docs: https://developers.cvent.com/docs/webhooks/messages/event-speakers/speaker-created
- group: event-speakers
  event: speaker deleted
  slug: speaker-deleted
  docs: https://developers.cvent.com/docs/webhooks/messages/event-speakers/speaker-deleted
- group: event-speakers
  event: speaker modified
  slug: speaker-modified
  docs: https://developers.cvent.com/docs/webhooks/messages/event-speakers/speaker-modified
- group: events
  event: event cancelled
  slug: event-cancelled
  docs: https://developers.cvent.com/docs/webhooks/messages/events/event-cancelled
- group: events
  event: event deleted
  slug: event-deleted
  docs: https://developers.cvent.com/docs/webhooks/messages/events/event-deleted
- group: events
  event: event modified
  slug: event-modified
  docs: https://developers.cvent.com/docs/webhooks/messages/events/event-modified
- group: manual
  event: manual attendee
  slug: manual-attendee
  docs: https://developers.cvent.com/docs/webhooks/messages/manual/manual-attendee
- group: manual
  event: manual attendee abandoned
  slug: manual-attendee-abandoned
  docs: https://developers.cvent.com/docs/webhooks/messages/manual/manual-attendee-abandoned
- group: manual
  event: manual event
  slug: manual-event
  docs: https://developers.cvent.com/docs/webhooks/messages/manual/manual-event
- group: manual
  event: manual session
  slug: manual-session
  docs: https://developers.cvent.com/docs/webhooks/messages/manual/manual-session
- group: manual
  event: manual speaker
  slug: manual-speaker
  docs: https://developers.cvent.com/docs/webhooks/messages/manual/manual-speaker
- group: meeting-requests
  event: meeting request modified
  slug: meeting-request-modified
  docs: https://developers.cvent.com/docs/webhooks/messages/meeting-requests/meeting-request-modified
- group: meeting-requests
  event: meeting request submitted
  slug: meeting-request-submitted
  docs: https://developers.cvent.com/docs/webhooks/messages/meeting-requests/meeting-request-submitted