---
title: uddiFromKey
description: The value of this attribute uniquely references the first business entity for which an assertion is made.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-uddiFromKey
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-uddiFromKey.html
---

# uddiFromKey

The value of this attribute uniquely references the first business entity for which an assertion is made.

|                             |                                                                |
| --------------------------- | -------------------------------------------------------------- |
| *OID*                       | 1.3.6.1.1.10.4.25                                              |
| *Names*                     | uddiFromKey                                                    |
| *Description*               | unique businessEntity key reference                            |
| *Syntax*                    | [DirectoryString](s-DirectoryString.html)                      |
| *Equality matching rule*    | [caseIgnoreMatch](mr-caseIgnoreMatch.html)                     |
| *Ordering matching rule*    | [caseIgnoreOrderingMatch](mr-caseIgnoreOrderingMatch.html)     |
| *Substring matching rule*   | [caseIgnoreSubstringsMatch](mr-caseIgnoreSubstringsMatch.html) |
| *Single value*              | true                                                           |
| *User modification allowed* | true                                                           |
| *Usage*                     | userApplications                                               |
| *Origin*                    | [RFC 4403](https://datatracker.ietf.org/doc/html/rfc4403)      |
| *Schema file*               | 03-uddiv3.ldif                                                 |
| *Used by*                   | [uddiPublisherAssertion](oc-uddiPublisherAssertion.html)       |