---
title: "PATCH /largefacelists/{largeFaceListId}"
method: PATCH
path: "/largefacelists/{largeFaceListId}"
---

# PATCH /largefacelists/{largeFaceListId}

`PATCH /largefacelists/{largeFaceListId}`

Update information of a Large Face List, including name and userData.

## Path parameters

- `largeFaceListId` string, 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** `e1f63ec9983b` — 1 info
  - api operation id `LargeFaceList_Update` removed and replaced with `FaceListOperations_UpdateLargeFaceList`

[Change history](https://skmtc.dev/azure/apis/ai-face/changes/largefacelists/:largeFaceListId/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/e9a68c525be6/schema)