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

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

`POST /largepersongroups/{largePersonGroupId}/train`

The training task is an asynchronous task. Training time depends on the number of person entries, and their faces in a Large Person Group. It could be in several seconds, or up to half a hour for 1,000,000 persons. To check training status, please use "Get Large Person Group Training Status".

## Path parameters

- `largePersonGroupId` string, required

## Response `202`

A successful call returns an empty response body.

## Other responses

- `default` — An unexpected error response.

---

[API](https://skmtc.net/azure/apis/ai-face.md) · [All operations](https://skmtc.net/azure/apis/ai-face/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/azure/ai-face/revisions/e9a68c525be6/schema)