---
title: "PUT /persongroups/{personGroupId}"
method: PUT
path: "/persongroups/{personGroupId}"
---

# PUT /persongroups/{personGroupId}

`PUT /persongroups/{personGroupId}`

Create a new person group with specified personGroupId, name, user-provided userData and recognitionModel.
<br /> A person group is the container of the uploaded person data, including face recognition features.
<br /> After creation, use [PersonGroup Person - Create](https://docs.microsoft.com/rest/api/faceapi/persongroupperson/create) to add persons into the group, and then call [PersonGroup - Train](https://docs.microsoft.com/rest/api/faceapi/persongroup/train) to get this group ready for [Face - Identify](https://docs.microsoft.com/rest/api/faceapi/face/identify).
<br /> No image will be stored. Only the person's extracted face features and userData will be stored on server until [PersonGroup Person - Delete](https://docs.microsoft.com/rest/api/faceapi/persongroupperson/delete) or [PersonGroup - Delete](https://docs.microsoft.com/rest/api/faceapi/persongroup/delete) is called.
<br/>'recognitionModel' should be specified to associate with this person group. The default value for 'recognitionModel' is 'recognition_01', if the latest model needed, please explicitly specify the model you need in this parameter. New faces that are added to an existing person group will use the recognition model that's already associated with the collection. Existing face features in a person group can't be updated to features extracted by another version of recognition model.

Person group quota:
* Free-tier subscription quota: 1,000 person groups. Each holds up to 1,000 persons.
* S0-tier subscription quota: 1,000,000 person groups. Each holds up to 10,000 persons.
* to handle larger scale face identification problem, please consider using [LargePersonGroup](https://docs.microsoft.com/rest/api/faceapi/largepersongroup).

## Path parameters

- `personGroupId` string, required

## Request body

- MetaDataContract — A combination of user defined name and user specified data for the person, largePersonGroup/personGroup, and largeFaceList/faceList.
  - `name` string, required — 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)