---
title: uniqueMemberMatch
description: Compares an assertion value of Name And Optional UID syntax to a value whose syntax is an ASN.1 NameAndOptionalUID type.
component: pingds
version: 8.1
page_id: pingds:schemaref:mr-uniqueMemberMatch
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/mr-uniqueMemberMatch.html
---

# uniqueMemberMatch

Compares an assertion value of Name And Optional UID syntax to a value whose syntax is an ASN.1 NameAndOptionalUID type.

The rule evaluates to TRUE if and only if The distinguished name components of the assertion value and the attribute value match according to the `distinguishedNameMatch` rule, and either of the following are true:

\* The bit string component is absent from both values.

\* The bit string components are present in both values, and they match according to the `bitStringMatch` rule.

|                    |                                                           |
| ------------------ | --------------------------------------------------------- |
| *OID*              | 2.5.13.23                                                 |
| *Names*            | uniqueMemberMatch                                         |
| *Assertion syntax* | [NameandOptionalUID](s-NameandOptionalUID.html)           |
| *Origin*           | [RFC 4517](https://datatracker.ietf.org/doc/html/rfc4517) |