> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.trackingmore.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Is tracking ID the same as Tracking Number?

Tracking ID or ID is the unique ID of a tracking number imported to TrackingMore system via TrackingMore API V4, which is generated automatically by TrackingMore system.

Below API features require tracking ID:

1.  [Update a tracking by ID](https://www.trackingmore.com/docs/trackingmore/ed1ad3cfa2fdf-update-a-tracking-by-id)

2. [Delete a tracking by ID](https://www.trackingmore.com/docs/trackingmore/76a7dc1c45458-delete-tracking-by-id)

3. [Retrack notfound or expired tracking by ID](https://www.trackingmore.com/docs/trackingmore/180fed8c3c455-retrack-expired-tracking-by-id)

||| Note: ID & Headers are REQUIRED