---
title: "US SAM: introducing uniqueEntityId for UEI"
url: "https://www.opensanctions.org/changelog/15/"
id: "15"
date_created: "2024-12-02T12:42:47.588Z"
date_effective: "2025-02-01"
breaking: false
categories: ["Data model"]
---

# US SAM: introducing uniqueEntityId for UEI

In the [`us_sam_exclusions` dataset](https://www.opensanctions.org/datasets/us_sam_exclusions/) based off the SAM.gov exclusion and debarment list, the designated entity's UEI is currently stored in the `registrationNumber` field. Going forward, a new property, called `uniqueEntityId` is available and will contain these identifiers. Starting Feb 1, 2025, we will then remove the UEI mapping to `registrationNumber`.