diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ebf8b6e..db4ef597 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ The file format of it is based on [Keep a Changelog](http://keepachangelog.com/e
 For public Changelog covering all changes done to Pipedrive’s API, webhooks and app extensions platforms, see [public Changelog](https://pipedrive.readme.io/docs/changelog) with discussion area in [Developers Community](https://devcommunity.pipedrive.com/c/documentation/changelog/19).
 
 ## [Unreleased]
+### Added
+- Added `outcome` field to v1 activity schema (`ActivityObjectFragment`) and v2 activity schemas (`ActivityItem`, `ActivityRequestBody`) — documents the Activity Outcome value, enabling partner integrations to read and write Outcomes on Activities via the public API
 
 ## [33.6.2] - 2026-09-08
 ### Changed
diff --git a/src/versions/v1/models/activity-collection-response-object-all-of.ts b/src/versions/v1/models/activity-collection-response-object-all-of.ts
index 198ad083..6582106a 100644
--- a/src/versions/v1/models/activity-collection-response-object-all-of.ts
+++ b/src/versions/v1/models/activity-collection-response-object-all-of.ts
@@ -70,5 +70,10 @@ export interface ActivityCollectionResponseObjectAllOf {
     * @type {string}
     */
     'public_description'?: string;
+    /**
+    * The ID of the Outcome for the activity. The available Outcome values depend on the activity type and can be retrieved using the Activity Fields API. Set to `null` to clear the Outcome.
+    * @type {number}
+    */
+    'outcome'?: number | null;
 }
 
diff --git a/src/versions/v2/models/activity-item.ts b/src/versions/v2/models/activity-item.ts
index d847e1a1..1cfea13b 100644
--- a/src/versions/v2/models/activity-item.ts
+++ b/src/versions/v2/models/activity-item.ts
@@ -165,6 +165,11 @@ export interface ActivityItem {
     */
     'priority'?: number;
     /**
+    * The ID of the Outcome for the activity. The available Outcome values depend on the activity type and can be retrieved using the Activity Fields API.
+    * @type {number}
+    */
+    'outcome'?: number | null;
+    /**
     * The note of the activity
     * @type {string}
     */
diff --git a/src/versions/v2/models/add-activity-request.ts b/src/versions/v2/models/add-activity-request.ts
index 46d879df..80a74bf1 100644
--- a/src/versions/v2/models/add-activity-request.ts
+++ b/src/versions/v2/models/add-activity-request.ts
@@ -120,6 +120,11 @@ export interface AddActivityRequest {
     */
     'priority'?: number;
     /**
+    * The ID of the Outcome for the activity. The available Outcome values depend on the activity type and can be retrieved using the Activity Fields API. Set to `null` to clear the Outcome.
+    * @type {number}
+    */
+    'outcome'?: number | null;
+    /**
     * The note of the activity
     * @type {string}
     */