---
title: "Changes to Update Contact Custom Fields"
method: PUT
path: "/contacts/{contactId}/custom-fields"
---

# Changes to Update Contact Custom Fields

`PUT /contacts/{contactId}/custom-fields`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `443924b00f43`: 3 breaking, 2 warning, 1 info

## Changes

- **2026-11-03** `443924b00f43`: 3 breaking, 2 warning, 1 info
  - removed the required property `status` from the response with the `416` status
  - removed the required property `title` from the response with the `416` status
  - removed the required property `type` from the response with the `416` status
  - removed the optional property `detail` from the response with the `416` status
  - removed the optional property `traceId` from the response with the `416` status
  - added the optional property `message` to the response with the `416` status

---

[Operation](https://skmtc.dev/acculynx/apis/acculynx-api-v2/docs/contacts/:contactId/custom-fields/put.md) - [API](https://skmtc.dev/acculynx/apis/acculynx-api-v2.md) - [Page](https://skmtc.dev/acculynx/apis/acculynx-api-v2/changes/contacts/:contactId/custom-fields/put)