| Name | Type | Description | Notes |
|---|---|---|---|
| profileId | String | ID of the customer profile set by your integration layer. Note: If the customer does not yet have a known `profileId`, we recommend you use a guest `profileId`. | [optional] |
| type | String | A string representing the event. Must not be a reserved event name. | |
| attributes | Object | Arbitrary additional JSON data associated with the event. | |
| sessionId | String | The ID of the session that this event occurred in. |