---
title: "Update custom field value"
method: PUT
path: "/rest/api/3/app/field/{fieldIdOrKey}/value"
tags: ["Issue custom field values (apps)"]
---

# Update custom field value

`PUT /rest/api/3/app/field/{fieldIdOrKey}/value`

Updates the value of a custom field on one or more issues.

Apps can only perform this operation on [custom fields](https://developer.atlassian.com/platform/forge/manifest-reference/modules/jira-custom-field/) and [custom field types](https://developer.atlassian.com/platform/forge/manifest-reference/modules/jira-custom-field-type/) declared in their own manifests.

**[Permissions](#permissions) required:** Only the app that owns the custom field or custom field type can update its values with this operation.

The new `write:app-data:jira` OAuth scope is 100% optional now, and not using it won't break your app. However, we recommend adding it to your app's scope list because we will eventually make it mandatory.

## Path parameters

- `fieldIdOrKey` string, required

## Query parameters

- `generateChangelog` boolean
- `generateAppEvents` boolean

## Request body

- CustomFieldValueUpdateDetails — Details of updates for a custom field.
  - `updates` CustomFieldValueUpdate[] — The list of custom field update details.
    - `issueIds` integer[], required — The list of issue IDs.
    - `value` unknown, required

## Response `204`

Returned if the request is successful.

- unknown

## Other responses

- `400` — Returned if the request is invalid.
- `403` — Returned if the request is not authenticated as the app that provided the field.
- `404` — Returned if the field is not found.

---

[API](https://skmtc.net/atlassian/apis/the-jira-cloud-platform-rest-api-2.md) · [All operations](https://skmtc.net/atlassian/apis/the-jira-cloud-platform-rest-api-2/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/atlassian/the-jira-cloud-platform-rest-api-2/versions/5a51740d7ab3/schema)