---
title: "PATCH /facelists/{faceListId}"
method: PATCH
path: "/facelists/{faceListId}"
---

# PATCH /facelists/{faceListId}

`PATCH /facelists/{faceListId}`

Update information of a face list.

## Path parameters

- `faceListId` string, required

## Request body

- NameAndUserDataContract — A combination of user defined name and user specified data for the person, largePersonGroup/personGroup, and largeFaceList/faceList.
  - `name` string — User defined name, maximum length is 128.
  - `userData` string — User specified data. Length should not exceed 16KB.

## Response `200`

A successful call returns an empty response body.

## Other responses

- `default` — Error response.

---

[API](https://skmtc.net/azure/apis/cognitiveservices-face.md) · [All operations](https://skmtc.net/azure/apis/cognitiveservices-face/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/azure/cognitiveservices-face/versions/8a19b734b92a/schema)