> ## Documentation Index
> Fetch the complete documentation index at: https://developers.plane.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

Work item activity represents the history of all changes made to a work item, including property changes, comments, and other modifications.

<Warning>
  **Deprecation notice**

  We are deprecating all `/api/v1/.../issues/` endpoints in favor of `/api/v1/.../work-items/`.

  **End of support**\
  31st March 2026

  **What you need to do**\
  To ensure uninterrupted service, replace all `/issues/` references with `/work-items/` in your codebase before the support end date.
</Warning>

## The Activity object

**Attributes**

* `id` *uuid*

  Unique identifier for the activity

* `created_at` *timestamp*

  The timestamp of the time when the activity was created

* `updated_at` *timestamp*

  The timestamp of the time when the activity was last updated

* `deleted_at` *timestamp* or *null*

  The timestamp when the activity was deleted (if deleted)

* `verb` *string*

  created or updated

* `field` *string* or *null*

  The field that got changed null when created

* `old_value` *string*

  Old value of the field

* `new_value` *string*

  New value of the field

* `comment` *string*

  Comment auto generated

* `attachments` - *\[url,]*

  Url of all the attachments that are in the activity

* `old_identifier` *uuid*

  Old identifier of the field

* `new_identifier` *uuid*

  New identifier of the field

* `epoch` *float*

  Epoch float field when the activity was created.

* `project` uuid

  It contains projects uuid which is automatically saved.

* `workspace` uuid

  It contains workspace uuid which is automatically saved

* `issue` *uuid*

  The work item the activity is attached to

* `issue_comment` *uuid or null*

  The comment uuid if the activity was created due to a comment

* `actor` uuid

  The actor who triggered this activity

<ResponseExample>
  ```json THE ACTIVITY OBJECT theme={null}
  {
      "id": "35612f5b-3eff-4130-b91c-c976ff887a20",
      "created_at": "2023-11-19T11:56:55.452555Z",
      "updated_at": "2023-11-19T11:56:55.452561Z",
      "verb": "created",
      "field": null,
      "old_value": null,
      "new_value": null,
      "comment": "created the work item",
      "attachments": [],
      "old_identifier": null,
      "new_identifier": null,
      "epoch": 1700395015.0,
      "project": "4af68566-94a4-4eb3-94aa-50dc9427067b",
      "workspace": "cd4ab5a2-1a5f-4516-a6c6-8da1a9fa5be4",
      "issue": "e1c25c66-5bb8-465e-a818-92a483423443",
      "issue_comment": null,
      "actor": "16c61a3a-512a-48ac-b0be-b6b46fe6f430"
  }
  ```
</ResponseExample>