| Name | Type | Description | Notes |
|---|---|---|---|
| contact_id | string | The unique contact UUID. | [optional] |
| sms_channel_id | string | The unique SMS channel UUID. | [optional] |
| sms_channel_history_id | string | The unique SMS channel history UUID. | [optional] |
| insert_time | \DateTime | The date and time that the history record was created, in ISO-8601 format. System generated. | [optional] |
| history_details | \OpenAPI\Client\Model\HistoryDetails | [optional] |