| Name | Type | Description | Notes |
|---|---|---|---|
| contact_id | string | The ID that uniquely identifies a contact. | |
| campaign_activity_id | string | The ID that uniquely identifies the email campaign activity. | |
| tracking_activity_type | string | The type of report tracking activity that is associated with the specified <code>campaign_activity_id</code>. | |
| email_address | string | The contact's email address. | |
| first_name | string | The first name of the contact. | [optional] |
| last_name | string | The last name of the contact. | [optional] |
| opt_out_reason | string | The opt-out reason, if the contact entered a reason. | [optional] |
| created_time | \DateTime | The time that the contact chose to opt-out from receiving future email campaign activities. | |
| deleted_at | \DateTime | If applicable, displays the date that the contact was deleted. | [optional] |