---
title: "Changes to Create a draft experiment"
method: POST
path: "/api/v1/campaigns/{campaign_id}/experiments"
---

# Changes to Create a draft experiment

`POST /api/v1/campaigns/{campaign_id}/experiments`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 47 revisions.

- **2026-10-10** `15bec682217c`: 1 info
- **2026-10-10** `15bec682217c`: 1 info
- **2026-09-03** `219a10b80707`: 1 info

## Changes

- **2026-10-10** `15bec682217c`: 1 info
  - added the new `post_transfer_follow_up` enum value to the request property `primary_metric`
- **2026-10-10** `15bec682217c`: 1 info
  - added the new `post_transfer_follow_up` enum value to the request property `primary_metric`
- **2026-09-03** `219a10b80707`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/outrival/apis/outrival-api/docs/api/v1/campaigns/:campaign_id/experiments/post.md) - [API](https://skmtc.dev/outrival/apis/outrival-api.md) - [Page](https://skmtc.dev/outrival/apis/outrival-api/changes/api/v1/campaigns/:campaign_id/experiments/post)