---
title: "Submit a Person Group training task. Training is a crucial step that only a trained Person Group can be used by \"Identify From Person Group\"."
method: POST
path: "/persongroups/{personGroupId}/train"
---

# Submit a Person Group training task. Training is a crucial step that only a trained Person Group can be used by "Identify From Person Group".

`POST /persongroups/{personGroupId}/train`

The training task is an asynchronous task. Training time depends on the number of person entries, and their faces in a Person Group. It could be several seconds to minutes. To check training status, please use "Get Person Group Training Status".

## Path parameters

- `personGroupId` string, required

## Response `202`

A successful call returns an empty response body.

## Other responses

- `default` — An unexpected error response.

## Changes

- **2026-07-13** `e1f63ec9983b` — 1 info
  - api operation id `PersonGroup_Train` removed and replaced with `PersonGroupOperations_TrainPersonGroup`

[Change history](https://skmtc.dev/azure/apis/ai-face/changes/persongroups/:personGroupId/train/post.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)