---
title: "Changes to Send Measurement Source Of Truth (MSOT) attributed conversion events"
method: POST
path: "/ad_accounts/{ad_account_id}/msot/events"
---

# Changes to Send Measurement Source Of Truth (MSOT) attributed conversion events

`POST /ad_accounts/{ad_account_id}/msot/events`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 29 revisions.

- **2026-06-04** (v5) `b698c180678a`: 20 breaking, 1 warning, 9 info
- **2025-04-04** (v5) `10f9eba4ad97`: 1 info

## Changes

- **2026-06-04** (v5) `b698c180678a`: 20 breaking, 1 warning, 9 info
  - added `#/components/schemas/AttributionModel` to the `attribution_model` request property `allOf` list
  - added `#/components/schemas/AttributionScope` to the `attribution_scope` request property `allOf` list
  - added `#/components/schemas/MsotEventName` to the `event_name` request property `allOf` list
  - added `#/components/schemas/Pinterest.Lib.IntegerFormatType` to the `ad_group_id` request property `allOf` list
  - added `#/components/schemas/Pinterest.Lib.IntegerFormatType` to the `campaign_id` request property `allOf` list
  - removed the enum value `add_to_cart` of the request property `event_name`
  - removed the enum value `checkout` of the request property `event_name`
  - removed the enum value `click` of the request property `attribution_scope`
  - removed the enum value `engagement` of the request property `attribution_scope`
  - removed the enum value `first_touch` of the request property `attribution_model`
  - removed the enum value `last_touch` of the request property `attribution_model`
  - removed the enum value `lead` of the request property `event_name`
  - removed the enum value `multi_touch` of the request property `attribution_model`
  - removed the enum value `signup` of the request property `event_name`
  - removed the enum value `view` of the request property `attribution_scope`
  - the `ad_group_id` request property type changed from `string` to no type
  - the `attribution_model` request property type changed from `string` to no type
  - the `attribution_scope` request property type changed from `string` to no type
  - the `campaign_id` request property type changed from `string` to no type
  - the `event_name` request property type changed from `string` to no type
  - removed `subschema #2` from the `currency` request property `allOf` list
  - added the new optional request property `click_window`
  - added the new optional request property `total_events_fractional`
  - added the new optional request property `view_window`
  - the request property `attribution_scope` became optional
  - request property `total_events` deprecated
  - removed the pattern `^\d+$` from the request property `ad_group_id`
  - removed the pattern `^\d+$` from the request property `campaign_id`
  - added the non-success response with the status `404`
  - added the success response with the status `201`
- **2025-04-04** (v5) `10f9eba4ad97`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/pinterest/apis/pinterest-rest-api/docs/ad_accounts/:ad_account_id/msot/events/post.md) - [API](https://skmtc.dev/pinterest/apis/pinterest-rest-api.md) - [Page](https://skmtc.dev/pinterest/apis/pinterest-rest-api/changes/ad_accounts/:ad_account_id/msot/events/post)