---
title: "Changes to Terminate experiment"
method: POST
path: "/application/{applicationId}/v2/experiments/{experimentId}/terminate"
---

# Changes to Terminate experiment

`POST /application/{applicationId}/v2/experiments/{experimentId}/terminate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 21 revisions.

- **2026-10-13** `efdc00220d24`: 1 warning, 1 info
- **2026-10-09** `c00591dedd1f`: 1 info
- **2026-10-03** `e6cbc297dcb1`: 1 info
- **2026-09-26** `8541dcfed596`: 12 breaking, 20 info
- **2026-09-25** `6038ecabdc8b`: 2 info

## Changes

- **2026-10-13** `efdc00220d24`: 1 warning, 1 info
  - added the new `pending` enum value to the `state` response property for the response status `200`
  - added the required property `cohorts` to the response with the `200` status
- **2026-10-09** `c00591dedd1f`: 1 info
  - added the required property `exclusive` to the response with the `200` status
- **2026-10-03** `e6cbc297dcb1`: 1 info
  - added the required property `rollout` to the response with the `200` status
- **2026-09-26** `8541dcfed596`: 12 breaking, 20 info
  - the response property `description` became nullable for the status `200`
  - the response property `endsAt` became nullable for the status `200`
  - the response property `groups/items/iconName` became nullable for the status `200`
  - the response property `targeting` became nullable for the status `200`
  - the response property `terminatedAt` became nullable for the status `200`
  - the response property `terminatedBy` became nullable for the status `200`
  - the `description` response's property type changed from no type to `string, null` for status `200`
  - the `endsAt` response's property type changed from no type to `string, null`, and format from no format to `date-time` for status `200`
  - the `groups/items/iconName` response's property type changed from no type to `string, null` for status `200`
  - the `targeting` response's property type changed from no type to `object, null` for status `200`
  - the `terminatedAt` response's property type changed from no type to `string, null`, and format from no format to `date-time` for status `200`
  - the `terminatedBy` response's property type changed from no type to `string, null`, and format from no format to `uuid` for status `200`
  - api operation id `terminateExperiment` was added
  - the endpoint scheme security `cookieAuth` was removed from the API
  - for the `path` request parameter `applicationId`, the exclusiveMinimum was decreased from `true` to `0.00`
  - for the `path` request parameter `experimentId`, the exclusiveMinimum was decreased from `true` to `0.00`
  - added `subschema #1` to the `groups/items/changeset/operations/items/baseValue` response property `allOf` list for the response status `200`
  - added `subschema #1` to the `groups/items/changeset/operations/items/value` response property `allOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `description` response property `anyOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `endsAt` response property `anyOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `groups/items/iconName` response property `anyOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `targeting` response property `anyOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `terminatedAt` response property `anyOf` list for the response status `200`
  - removed `subschema #1, subschema #2` from the `terminatedBy` response property `anyOf` list for the response status `200`
  - the `endsAt` response's property pattern `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` was added for the status `200`
  - the `terminatedAt` response's property pattern `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` was added for the status `200`
  - the `terminatedBy` response's property pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$` was added for the status `200`
  - the `createdAt` response's property pattern was changed from `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` to `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` for the status `200`
  - the `startsAt` response's property pattern was changed from `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` to `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` for the status `200`
  - the `updatedAt` response's property pattern was changed from `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` to `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$` for the status `200`
  - added the required property `targeting/root` to the response with the `200` status
  - added the required property `targeting/version` to the response with the `200` status
- **2026-09-25** `6038ecabdc8b`: 2 info
  - the endpoint scheme security `cookieAuth` was added to the API
  - the endpoint scheme security `personalAccessTokenAuth` was added to the API

---

[Operation](https://skmtc.dev/gamebeast/apis/gamebeast-api/docs/application/:applicationId/v2/experiments/:experimentId/terminate/post.md) - [API](https://skmtc.dev/gamebeast/apis/gamebeast-api.md) - [Page](https://skmtc.dev/gamebeast/apis/gamebeast-api/changes/application/:applicationId/v2/experiments/:experimentId/terminate/post)