---
title: "Get event"
method: GET
path: "/api/v1/cdp/events/{externalId}"
tags: ["CDP Events"]
---

# Get event

`GET /api/v1/cdp/events/{externalId}`

Read one event by its external id.

## Path parameters

- `externalId` string, required — The event externalId, as supplied at record time.

## Response `200`

Success

- object
  - `externalId` string, required — Your stable identifier for this event (idempotency key).
  - `name` string, required
  - `timestamp` string, required — When the event occurred, ISO 8601.
  - `personExternalId` string, nullable, required
  - `customObjectType` string, nullable, required
  - `customObjectExternalId` string, nullable, required
  - `properties` object, required — Free-form event payload.
  - `receivedAt` string, required — When the event was received, ISO 8601.

## Other responses

- `400` — Validation failed or the request cannot proceed.
- `401` — Missing, malformed, or revoked API key.
- `404` — The resource does not exist in this organization.
- `409` — Conflicts with the current state (duplicates, wrong lifecycle state).
- `422` — The request is well-formed but semantically invalid.
- `429` — Rate limit exceeded — retry after `Retry-After`.
- `500` — Internal server error.
- `503` — Transient error — retry with a narrower request.

---

[API](https://skmtc.net/useboom/apis/boom-api.md) · [All operations](https://skmtc.net/useboom/apis/boom-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/useboom/boom-api/revisions/00f873e07076/schema)