---
title: "PATCH /persons/{personId}"
method: PATCH
path: "/persons/{personId}"
---

# PATCH /persons/{personId}

`PATCH /persons/{personId}`

Update name or userData of a person.

## Path parameters

- `personId` string, uuid, required

## Request body

- UserDefinedFieldsForUpdate — User defined fields for object update.
  - `name` string — User defined name, maximum length is 128.
  - `userData` string — Optional user defined data. Length should not exceed 16K.

## Response `200`

The request has succeeded.

## Other responses

- `default` — An unexpected error response.

## Changes

- **2026-07-13** `44e2cf82becd` — 1 info
  - endpoint added
- **2026-07-13** `e1f63ec9983b` — 1 info
  - endpoint added
- **2026-07-13** `5375faa8d134` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/azure/apis/ai-face/changes/persons/:personId/patch.md)

---

[API](https://skmtc.dev/azure/apis/ai-face.md) · [All operations](https://skmtc.dev/azure/apis/ai-face/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/azure/ai-face/revisions/44e2cf82becd/schema)