# AutomationActivityInstance

Defines a specific instance of an activity in an automation in Automation Studio.

| Name                     | Data Type                                                                                        | Description                                                                                                     |
| ------------------------ | ------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------- |
| `ActivityDefinition`     | [AutomationActivity](/docs/marketing/marketing-cloud/guide/automationactivity.md) object         | Identifies the activity definition associated with activity.                                                    |
| `ActivityID`             | String                                                                                           | The unique ID of the activity.                                                                                  |
| `ActivityObject`         | [APIObject](/docs/marketing/marketing-cloud/guide/apiobject.md) object                           | Indicates activity associated with automation instance.                                                         |
| `Automation`             | [Automation](/docs/marketing/marketing-cloud/guide/automation.md) object                         | The automation that’s associated with the activity.                                                             |
| `AutomationID`           | String                                                                                           | The ID of the automation that’s associated with the activity.                                                   |
| `AutomationInstance`     | [AutomationInstance](/docs/marketing/marketing-cloud/guide/automationinstance.md) object         | Identifies the specific instance of an automation associated with activity.                                     |
| `AutomationTask`         | [AutomationTask](/docs/marketing/marketing-cloud/guide/automationtask.md) object                 | Identifies task within automation.                                                                              |
| `AutomationTaskInstance` | [AutomationTaskInstance](/docs/marketing/marketing-cloud/guide/automationtaskinstance.md) object | Identifies instance of automation task associated with activity.                                                |
| `Client`                 | [ClientID](/docs/marketing/marketing-cloud/guide/clientid.md) object                             | Defines which account owns the automation.                                                                      |
| `CompletedTime`          | DateTime                                                                                         | Indicates time instance of activity completed.                                                                  |
| `CorrelationID`          | String                                                                                           | Identifies calls involved in a specific asynchronous process.                                                   |
| `CreatedDate`            | DateTime                                                                                         | The date and time when the object was created.                                                                  |
| `CustomerKey`            | String                                                                                           | User-supplied unique identifier for an object within an object type.                                            |
| `Definition`             | [APIObject](/docs/marketing/marketing-cloud/guide/apiobject.md) object                           | Indicates definition associated with automation instance.                                                       |
| `Description`            | String                                                                                           | A description of the activity instance.                                                                         |
| `ID`                     | Int                                                                                              | A read-only identifier for the object.                                                                          |
| `IsActive`               | Boolean                                                                                          | Specifies whether the object is active.                                                                         |
| `ModifiedDate`           | DateTime                                                                                         | The date and time when the object was last modified.                                                            |
| `Name`                   | String                                                                                           | Name of the object or property.                                                                                 |
| `ObjectID`               | String                                                                                           | System-controlled, read-only text string identifier for object.                                                 |
| `ObjectState`            | String                                                                                           | Reserved for future use.                                                                                        |
| `Owner`                  | [Owner](/docs/marketing/marketing-cloud/guide/owner.md) object                                   | Describes account ownership of subscriber in an on-your-behalf account.                                         |
| `PartnerKey`             | String                                                                                           | Unique identifier provided by partner for an object. This property is accessible only via API.                  |
| `PartnerProperties`      | Array of [APIProperty](/docs/marketing/marketing-cloud/guide/apiproperty.md) objects             | A collection of metadata supplied by client and stored by system. This property is accessible only via the API. |
| `ScheduledTime`          | DateTime                                                                                         | Indicates time scheduled for this instance of an activity.                                                      |
| `Sequence`               | Int                                                                                              | Indicates sequence number for instance.                                                                         |
| `SequenceID`             | Int                                                                                              | Identifies sequence associated with instance.                                                                   |
| `StartTime`              | DateTime                                                                                         | The date and time when the instance of an activity started.                                                     |
| `Status`                 | Int                                                                                              | Indicates status for this instance of an activity.                                                              |
| `StatusLastUpdate`       | DateTime                                                                                         | The date and time when the status of the automation activity was last updated.                                  |
| `StatusMessage`          | String                                                                                           | Indicates message associated with status.                                                                       |

## Related Items

- [Automation](/docs/marketing/marketing-cloud/guide/automation.md)