---
title: "Start Tracking a Package"
method: POST
path: "/v1/tracking/start"
tags: ["tracking"]
---

# Start Tracking a Package

`POST /v1/tracking/start`

Allows you to subscribe to tracking updates for a package. You specify the carrier_code and tracking_number of the package,
and receive notifications via webhooks whenever the shipping status changes.

## Query parameters

- `carrier_code` string
- `tracking_number` string

## Response `204`

The request was successful.

- string

## Other responses

- `400` — The request contained errors.
- `404` — The specified resource does not exist.
- `500` — An error occurred on ShipEngine's side. > This error will automatically be reported to our engineers.

## Changes

- **2024-10-08** `e4ae9b442f54` — 9 info
  - added the optional property `errors/items/allOf[subschema #1: error]/carrier_code` to the response with the `400` status
  - added the optional property `errors/items/allOf[subschema #1: error]/carrier_code` to the response with the `404` status
  - added the optional property `errors/items/allOf[subschema #1: error]/carrier_code` to the response with the `500` status
  - added the optional property `errors/items/allOf[subschema #1: error]/carrier_id` to the response with the `400` status
  - …5 more
- **2024-09-13** `5a15ef11fd60` — 21 warning
  - added the new `file_not_found` enum value to the `errors/items/allOf[subschema #1: error]/error_code/allOf[subschema #1: error_code]/` response property for the response status `400`
  - added the new `file_not_found` enum value to the `errors/items/allOf[subschema #1: error]/error_code/allOf[subschema #1: error_code]/` response property for the response status `404`
  - added the new `file_not_found` enum value to the `errors/items/allOf[subschema #1: error]/error_code/allOf[subschema #1: error_code]/` response property for the response status `500`
  - added the new `funding_source_error` enum value to the `errors/items/allOf[subschema #1: error]/error_code/allOf[subschema #1: error_code]/` response property for the response status `400`
  - …17 more
- …earlier changes not shown

[Full history](https://skmtc.dev/shipengine/apis/shipengine-api/changes/v1/tracking/start/post.md)

---

[API](https://skmtc.dev/shipengine/apis/shipengine-api.md) · [All operations](https://skmtc.dev/shipengine/apis/shipengine-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/shipengine/shipengine-api/revisions/e4ae9b442f54/schema)