---
title: nsUniqueId
description: DSEE attribute holding an entry UUID.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-nsUniqueId
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-nsUniqueId.html
---

# nsUniqueId

DSEE attribute holding an entry UUID.

|                             |                                                                |
| --------------------------- | -------------------------------------------------------------- |
| *OID*                       | 2.16.840.1.113730.3.1.542                                      |
| *Names*                     | nsUniqueId                                                     |
| *Description*               | Sun-defined unique identifier                                  |
| *Syntax*                    | [IA5String](s-IA5String.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* | false                                                          |
| *Usage*                     | directoryOperation                                             |
| *Origin*                    | Sun Java System Directory Server                               |
| *Schema file*               | 00-core.ldif                                                   |