---
title: Unique Entity Identifier (UEI)
description: "A number or other identifier used to uniquely identify a specific entity. The UEI is used within SAM.gov and IAE as a primary key to identify a unique entity. Regulatory reference: [FAR subpart 4.6](https://www.acquisition.gov/far/subpart-4.6) [ctabanner id='1640100413']"
url: "https://www.gsascheduleservices.com/kb/sam/unique-entity-identifier-uei/"
updated: "2022-04-13"
category: After Award / Compliance / SAM Record
tags:
  - sam
---

# Unique Entity Identifier (UEI)

A number or other identifier used to uniquely identify a specific entity. The UEI is used within SAM.gov and IAE as a primary key to identify a unique entity.

Regulatory reference: [FAR subpart 4.6](https://www.acquisition.gov/far/subpart-4.6)

 [ctabanner id='1640100413']