---
title: "Updates the custom field values associated to a WorkApp. A null value removes the field."
method: PATCH
path: "/api/v1/WorkApps/{workAppId}/CustomFields"
tags: ["WorkApps"]
---

# Updates the custom field values associated to a WorkApp. A null value removes the field.

`PATCH /api/v1/WorkApps/{workAppId}/CustomFields`

## Path parameters

- `workAppId` string, uuid, required

## Headers

- `X-API-SECRET` string, required — API Secret is used to verify the integrity of the request and authenticate the client. It should be included in all requests. This value must be kept confidential and should never be exposed in client-side code or public repositories.

## Request body

- UpdateCustomFieldsForWorkAppRequestModelV1 — Request model used to update custom Fields for a workapp.
  - `customFields` UpdateCustomFieldForWorkAppRequestModelV1[], required — List of Custom Field new values.
    - `id` string, uuid, required — Identifier of the custom field to update.
    - `value` string, nullable — Value to update the custom field. A null value will remove the custom field value from the workapp.

## Response `204`

No Content

## Other responses

- `401` — Unauthorized
- `404` — Not Found
- `409` — Conflict
- `500` — Internal Server Error

---

[API](https://skmtc.net/cakewalk/apis/cakewalk-open-api.md) · [All operations](https://skmtc.net/cakewalk/apis/cakewalk-open-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/cakewalk/cakewalk-open-api/revisions/5728f183a29d/schema)