> This page is for version Staging.
> For other versions, use one of these documentation indexes:
> - Prod (default): https://docs.chrt.com/prod/llms.txt
> - Staging: https://docs.chrt.com/staging/llms.txt
> - Dev: https://docs.chrt.com/dev/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.chrt.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.chrt.com/_mcp/server.

# Tracking

> The tracking model on chrt — driver-based tracking on orders, standalone tracker sessions for independent devices, the milestone events emitted by each task action, how ETA is calculated, and public tracking links.

Tracking combines different sources. Driver location, device telemetry, flight information and task/proof events can describe different parts of a shipment; they are not interchangeable evidence.

## Order tracking

Open the order and inspect its **Timeline** and available map/details. Check the source and timestamp for each position or event. A planned route is not a recorded journey; a last-known location can be stale.

Driver reporting depends on the mobile account, organization, sharing toggle, permissions and connectivity. See [Live location](/staging/app/location). Do not assume an order status alone turns location sharing on or off.

For an order shared with a public link, a signed-out recipient sees a **Live tracking** page 1 with the driver's last location on the map 3 and the coordinates and **Last seen** time of the last report 4. See [Public Tracking Links](/staging/shippers/public-tracking).

![The signed-out public tracking page for an order in progress, with numbers 1 to 4 on the Live tracking title and In Progress status, the Updated age and refresh button, the driver's location marker on the map and the bar with coordinates and Last seen.](/_fern-files/_img/73a9916c48e1139378c0b8900fba71e254afdc255fcbd9448c676f6819123fea.webp)

*The public tracking page a recipient sees when signed out. **1** **Live tracking** title and **In Progress** status, **2** **Updated** age and refresh button, **3** driver location marker, **4** coordinates and **Last seen** bar.*

## Tracker session

A session organizes timestamped tracking data. A physical device must be supported, registered and configured for the intended use. For on-order visibility, check its cargo association separately. Registration or session creation does not prove a first report has arrived.

Review the actual start/end/termination settings and recorded data in the session. Do not rely on a general reporting interval or assume stopping a session erases history.

## Milestones

A task event, proof record, flight update and airline cargo milestone can be different facts. Check the source establishing pickup, tender, loading, recovery or customs. A flight's departure is not proof that the cargo was loaded.

## ETA

Treat an ETA as an estimate. Review the displayed time, relevant schedule/time window and the freshness of its input. It is not proof of pickup, a guaranteed arrival or a fixed buffer contract. For flight information, read its scheduled/estimated/actual status and timezone together.

## Public links

Public tracking is intended for recipients who can open a shared URL. Review the selected segments and data layers before sharing, then inspect the actual recipient view. Keep order sharing and standalone-session publication separate.

Do not assume all link types can be revoked by the same control. Stopping collection, changing sharing and deleting/requesting deletion have different outcomes; none should be described as removing all historical data without confirmation. See [Public tracking](/staging/shippers/public-tracking), [Session sharing](/staging/trackers/sharing) and [Security and privacy](/staging/docs/security).

## Confirm tracking

Check the saved assignment or device/cargo relationship, timestamp and recipient access. Contact support when expected data is absent rather than treating an enabled setting or toast as delivery evidence.