---
title: LTL / Parcel
slug: fourkites-api-reference/ltl-parcel
description: Learn about the field definitions and explanations needed for creating high-quality less-than-truckload (LTL) or parcel shipments for effective tracking. This document covers essential fields like load number, carrier information, reference numbers, tags,
icon: {"faIcon":"fa-solid fa-truck-arrow-right"}
createdAt: 2023-08-03T16:51:58.000Z
---

The following section details samples and recommended fields to create quality less-than-truckload (LTL) or parcel shipments for tracking. The fields shown in these samples follow recommendations, but the full list of available fields can be found in the fields list below.

The main differentiator of LTL and Parcel loads is the identifiers that are most commonly used to track them:

- `proNumber`: this is the PRO number associated with the shipment
- `trackingNumber`: this is the small parcel tracking number used for the load