Customer updated

Triggered after v3 customer facts, metadata, or related-party changes commit with a redacted change-category projection.

v3

{
  "id": "evt_abc123",
  "type": "customer.updated",
  "createdAt": "2026-07-04T12:00:00.000Z",
  "attempt": 1,
  "resource": {
    "type": "customer",
    "id": "cus_abc123"
  },
  "data": {
    "object": {
      "id": "cus_abc123",
      "type": "individual",
      "externalId": "customer-123",
      "changedSubresources": [
        "individual"
      ],
      "createdAt": "2026-05-18T10:00:00.000Z",
      "updatedAt": "2026-05-18T11:00:00.000Z"
    }
  }
}

Authorizations

X-API-Key · string · header · required

Body

application/json

id · string · required

Stable webhook event id for deduplication.

type · string · required

Allowed value: "customer.updated"

createdAt · string<date-time> · required

attempt · enum<integer> · required

Envelope attempt value; currently always 1 and unchanged by delivery retries.

Available options: 1

resource · object · required

Show child attributes

data · object · required

Show child attributes

Response

200

Webhook accepted by the merchant endpoint.