---
title: "Update (selectively) custom fields on an item."
method: PUT
path: "/api/items/{itemId}/custom-fields"
tags: ["Item Custom Fields"]
---

# Update (selectively) custom fields on an item.

`PUT /api/items/{itemId}/custom-fields`

## Path parameters

- `itemId` string, required

## Request body

- CustomFieldsDto — Represents custom fields
  - `customFields` object — The custom fields

## Response `200`

OK

- CustomFieldsDto — Represents custom fields
  - `customFields` object — The custom fields

---

[API](https://skmtc.net/fulcrumpro/apis/fulcrum-publicapi.md) · [All operations](https://skmtc.net/fulcrumpro/apis/fulcrum-publicapi/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fulcrumpro/fulcrum-publicapi/versions/1b5649cff14a/schema)