---
title: "Update"
method: POST
path: "/tracking/sessions/update/v1"
tags: ["/tracking"]
---

# Update

`POST /tracking/sessions/update/v1`

Updates mutable non-geofence session fields. Use dedicated geofence routes for geofence changes. | auth: api_key | authz: min_org_role=operator | (SessionClientUpdate2) -> (bool)

## Query parameters

- `session_id` string, required

## Request body

- SessionClientUpdate2
  - `off_chrt_reference_id` string, nullable — Must be a URL-safe string of 1-64 characters. Allowed characters: A-Z, a-z, 0-9, '.', '_', '~', '-' (RFC 3986 unreserved).
  - `comments` string, nullable
  - `public` boolean, nullable
  - `termination_scheduled_for_timestamp` string, date-time, nullable
  - `off_chrt_reference_id__set_to_None` boolean
  - `comments__set_to_None` boolean
  - `termination_scheduled_for_timestamp__set_to_None` boolean

## Response `200`

Successful Response

- boolean

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/chrt/apis/chrt-fastapi.md) · [All operations](https://skmtc.dev/chrt/apis/chrt-fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/chrt/chrt-fastapi/revisions/ea04e157edb3/schema)