XADM: NTDSnoMatch Causes Active Directory Connector Event 8281 with Duplicate Security ID (309243)

The information in this article applies to:

Microsoft Exchange 2000 Server

This article was previously published under Q309243

SYMPTOMS

While you are importing an object that has NTDSnoMatch stamped on an extension attribute, the Active Directory Connector (ADC) reports an event 8281 warning in the Application event log:

Event Type: Warning
Event Source: MSADC
Event Category: Replication
Event ID: 8281
Description:
ADC could not replicate the msExchMasterAccountSid to
CN=user,OU=MyOu,DC=Domain,DC=com because this sid
is already on the object CN=OtherUser,OU=MyOu,DC=Domain,DC=com.
(Connection Agreement '1 Way From 55' #3272)

CAUSE

This behavior occurs because the associated Microsoft Windows NT account on this object is already the Master Account Security ID (SID) on an object in the target directory.

RESOLUTION

To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 2.

Modification Type:	Minor	Last Reviewed:	4/28/2005
Keywords:	kbbug kbExchange2000SP2Fix kbnofix KB309243