---
title: Modify an app store experiment
framework: appstoreconnectapi
role: symbol
role_heading: Web Service Endpoint
path: appstoreconnectapi/patch-v2-appstoreversionexperiments-_id_
---

# Modify an app store experiment

Update the name, the started state, and the proportion of traffic to send to an App Store experiment.

## URL

PATCH https://api.appstoreconnect.apple.com/v2/appStoreVersionExperiments/{id}

## Path Parameters

id: An opaque resource ID that uniquely identifies the resource. Obtain the app resource ID from the List all experiments for an app store version response.

## Response Codes

200 OK: 400 Bad Request: 401 Unauthorized: 403 Forbidden: 404 Not Found: 409 Conflict: 422 : 429 :

## Mentioned in

App Store Connect API 2.4 release notes

## Discussion

Discussion Example Request and Response

## See Also

### Managing App Store version experiments

- [List all experiments for an app store version v1](appstoreconnectapi/get-v1-appstoreversions-_id_-appstoreversionexperiments.md)
- [List all experiments ids for an app store version v1](appstoreconnectapi/get-v1-appstoreversions-_id_-relationships-appstoreversionexperiments.md)
- [List all experiments for an app store version](appstoreconnectapi/get-v1-appstoreversions-_id_-appstoreversionexperimentsv2.md)
- [List all experiment ids for an app store version](appstoreconnectapi/get-v1-appstoreversions-_id_-relationships-appstoreversionexperimentsv2.md)
- [Read app store experiment information](appstoreconnectapi/get-v2-appstoreversionexperiments-_id_.md)
- [List all treatments for an app store experiment](appstoreconnectapi/get-v2-appstoreversionexperiments-_id_-appstoreversionexperimenttreatments.md)
- [List treatment IDs for an app store version experiment](appstoreconnectapi/get-v2-appstoreversionexperiments-_id_-relationships-appstoreversionexperimenttreatments.md)
- [Create an app store experiment](appstoreconnectapi/post-v2-appstoreversionexperiments.md)
- [Delete an app store experiment](appstoreconnectapi/delete-v2-appstoreversionexperiments-_id_.md)
- [Read app store experiment information v1](appstoreconnectapi/get-v1-appstoreversionexperiments-_id_.md)
- [List all treatments for an app store experiment v1](appstoreconnectapi/get-v1-appstoreversionexperiments-_id_-appstoreversionexperimenttreatments.md)
- [List treatment IDs for an App Store version experiment](appstoreconnectapi/get-v1-appstoreversionexperiments-_id_-relationships-appstoreversionexperimenttreatments.md)
- [Modify an app store experiment v1](appstoreconnectapi/patch-v1-appstoreversionexperiments-_id_.md)
- [Create an app store experiment v1](appstoreconnectapi/post-v1-appstoreversionexperiments.md)
- [Delete an app store version experiment v1](appstoreconnectapi/delete-v1-appstoreversionexperiments-_id_.md)