---
title: uddiBusinessKey
description: The value of this attribute uniquely identifies a UDDI business entity.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-uddiBusinessKey
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-uddiBusinessKey.html
---

# uddiBusinessKey

The value of this attribute uniquely identifies a UDDI business entity.

This attribute is optional for a business service whose parent already has a business key.

|                             |                                                                                                      |
| --------------------------- | ---------------------------------------------------------------------------------------------------- |
| *OID*                       | 1.3.6.1.1.10.4.1                                                                                     |
| *Names*                     | uddiBusinessKey                                                                                      |
| *Description*               | businessEntity unique identifier                                                                     |
| *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*                   | [uddiBusinessEntity](oc-uddiBusinessEntity.html), [uddiBusinessService](oc-uddiBusinessService.html) |