---
title: "Start an activity durring an active session"
method: POST
path: "/LessonReport/StartActivity"
tags: ["LessonReport"]
---

# Start an activity durring an active session

`POST /LessonReport/StartActivity`

## Headers

- `X-Version` string

## Request body

- StartActivityRequest
  - `activityId` integer, nullable — lesson activity identifier required if no LessonActivityId provided
  - `lessonActivityId` integer, nullable — Non-unique lesson specific activity identifier required if no ActivityId provided
  - `lessonId` integer, required — lesson identifier

## Response `200`

Success

## Other responses

- `400` — Returned data will be in JSON format. <br /> errorCode=4001, message="activity does not exist", <br /> errorCode=4002, message="no active session", <br /> errorCode=4003, message="activity not started",
- `401` — if unauthorized

---

[API](https://skmtc.dev/eon-xr/apis/eonxr-api.md) · [All operations](https://skmtc.dev/eon-xr/apis/eonxr-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/eon-xr/eonxr-api/revisions/538c75161c64/schema)