---
title: "Changes to Start Experiment"
method: POST
path: "/sessions/{session_id}/experiments"
---

# Changes to Start Experiment

`POST /sessions/{session_id}/experiments`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 120 revisions.

- **2026-10-28** `76f3727ccdcf`: 2 warning
- **2026-10-28** `c248371b9401`: 1 info

## Changes

- **2026-10-28** `76f3727ccdcf`: 2 warning
  - the `validation_ratio` request property's max was set to `0.50`
  - the `validation_ratio` request property's min was set to `0.10`
- **2026-10-28** `c248371b9401`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/qredence/apis/fleet-rlm/docs/sessions/:session_id/experiments/post.md) - [API](https://skmtc.dev/qredence/apis/fleet-rlm.md) - [Page](https://skmtc.dev/qredence/apis/fleet-rlm/changes/sessions/:session_id/experiments/post)