---
title: "Label data model"
url: "https://docs.unified.to/shipping/label/model"
description: "API reference for Label data model. Launch multiple pre-built Label integrations today with zero maintenance — all through a single API."
generated_at: "2026-05-29T17:54:06.893Z"
---
# Label data model

 View field support, webhooks, and list parameters for each integration on the [Supported Integrations](/shipping/integrations) page. 

### 

* Data Model
* Typescript Type
* Zod Shape
* Python Class

Data Model

**id**string 

Unique identifier for this label object

**created\_at**date 

The date that this label object was created (ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**updated\_at**date 

The last date that this label object was updated (ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**shipment\_id**string 

Reference to the shipment

**tracking\_number**string 

Tracking number for the shipment

**label\_url**string 

URL to download the label

**label\_format** enum

Valid values:

 "PDF" 

 "PNG" 

 "ZPL" 

 "EPL2" 

 "PDF\_4X6" 

Format of the label (PDF, PNG, ZPL, EPL2)

**status** enum

Valid values:

 "PENDING" 

 "PROCESSING" 

 "IN\_TRANSIT" 

 "DELIVERED" 

 "EXCEPTION" 

Status of the label

**is\_voided**boolean 

Whether label has been voided

**label\_cost**number 

Cost to purchase label

**label\_cost\_currency**string 

**rate\_id**string 

Rate used for this label; points to ShippingRate

**service\_code**string 

Service code used

**raw**any 

The raw data returned by the integration for this label