How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

Table of Contents

Entra ID Connect error- Unique Value

Unable to update this object because the following attributes associated with this object have values that may already be associated with another object in your local directory services: [UserPrincipalName [email protected];]. Correct or remove the duplicate values in your local directory.

How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

Additionally, if you’re running Azure Active Directory (Connect) Sync Service, an instance of event ID 6941 that contains one of the following error messages is logged in the Application login Event Viewer:

 

Event ID: 6941
Log Name: Application
Source: ADSync
Level: Error
Details:
ECMA2 MA export run caused an error.

Error Name: InvalidSoftMatch
Error Detail: Unable to update this object because the following attributes associated with this object have values that may already be associated with another object in your local directory services: [ProxyAddresses SMTP:[email protected];]. Correct or remove the duplicate values in your local directory.
How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

Sign into Azure Active Directory

Let visit this link https://aad.portal.azure.com/#blade/Microsoft_AAD_IAM/UsersManagementMenuBlade/MsGraphDeletedUsers then sign in using an administrative account.

Delete the affected user permanently from deleted users in Azure Active Directory.

How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

Now, wait to the next sync or you can run below command in PowerShell to take the change go into immediately

PS C:\Users\Administrator> Start-ADSyncSyncCycle -PolicyType Initial

 Result
 ------
Success
How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

As you can see, the sync is completed and the error was gone.

How to Fix Entra ID Connect Attribute Value Must be Unique Office 365

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