Study user deleted

Payload

{
  "id": "whe_7E5H2v4X0hfhqLVmZg9HYZ",
  "event": "study.user.created",
  "version": "2022-12-14",
  "created_at": "2026-09-18T14:03:22.123456Z",
  "payload": {
    "id": "usr_2fBnKqWxYz5tRvMpLsJdHc",
    "name": "string",
    "email": "string",
    "timezone": "string",
    "type": "team",
    "access": "read",
    "study": {
      "id": "sdy_3vQ8kZpLmN2xRt7YwBcDfG",
      "project_id": "pjt_9kLmNpQrStUvWxYzAbCdEf",
      "name": "string",
      "code": "string",
      "study_code_id": "sdc_7hJ4nQrXsT9wYzAbCdEfGh",
      "type": "internal",
      "status": "in_progress",
      "description": "string",
      "timezone": "America/Los_Angeles",
      "metadata": {
        "cohort_size": 24,
        "species": "Mus musculus"
      },
      "author": {
        "id": "usr_2fBnKqWxYz5tRvMpLsJdHc",
        "name": "string",
        "email": "string",
        "timezone": "string"
      },
      "owner": {
        "id": "usr_2fBnKqWxYz5tRvMpLsJdHc",
        "name": "string",
        "email": "string",
        "timezone": "string"
      },
      "started_on": "2026-09-18",
      "tracking_day_base": 1,
      "completed_at": "2026-09-18T14:03:22.123456Z",
      "canceled_at": "2026-09-18T14:03:22.123456Z",
      "created_at": "2026-09-18T14:03:22.123456Z",
      "updated_at": "2026-09-18T14:03:22.123456Z"
    }
  }
}

Sent when a user is removed from a study. The payload is the study user as it was before removal.

Payload

The payload of this webhook request is an object.

idstringRequiredformat: "^whe_[a-zA-Z0-9]{10,22}$"

Unique identifier for a webhook event. A retried delivery carries the same identifier, so use it to discard duplicates.

eventenumRequired

The event that occurred.

Allowed values:

versionenumRequired

A released version of the public API. Each OAuth client is registered against one version, which determines the response shape it receives.

Allowed values:

created_atdatetimeRequired

UTC timestamp with microsecond precision, always suffixed with Z, in the form yyyy-MM-ddTHH:mm:ss.SSSSSSZ.

payloadobjectRequired

A user who has been invited to a study. You can retrieve it to see the user's name, email, access to the study and the study they belong to.

client_idstringOptionalformat: "uuid"

The OAuth client whose API request caused the event. Omitted when the event did not originate from an API request, and on events that never carry it.

Response

2XX

Any 2xx status acknowledges the delivery, which is then not retried. The response body is ignored.

Headers

Payload

Response