Issue description     

After updating Exchange-related attributes using ADManager Plus, the changes are not reflecting in Exchange server immediately. This delay can cause inconsistencies and confusion when managing mailbox properties.

Possible causes   

1. Replication delay: The changes made in ADManager Plus may take some time to sync across Active Directory (AD) and the Exchange server.

2. AD replication issues: If AD replication is not functioning correctly, Exchange will not receive the updated attributes.

3. Exchange address list update delay: Exchange relies on the Recipient Update Service or Address List Management Service, which may not have processed the changes yet.

4. Permissions issue: The account used to update attributes may not have permissions to modify Exchange properties.

5. Server caching: Exchange may cache user properties, causing a delay in updates.

6. Custom scripts or policies: If there are any custom scripts or policies in place, they may override or delay updates.

7. Connection: Exchange server might not be communicable, or the AD might hold a decommissioned Exchange Server.

Prerequisites     

• Ensure that ADManager Plus has the permissions to update Exchange attributes. The service account should be a member of the Organization Management Group.
• Ensure that the Exchange server is properly connected to AD.
  
• Check for any Group Policies or scripts that might interfere with updates.
  

Resolution 

Step 1: Verify the AD attribute update     

1. Open Active Directory Users and Computers (ADUC).

2. Locate the user whose attributes were updated.

3. Right-click the user and select Properties.

4. Navigate to the Attribute Editor tab.

5. Ensure that the updated Exchange attributes reflect in AD.

Step 2: Force AD replication     

1. Open Command Prompt as an administrator.

2. Run the following command to check the replication status:
   

   

   repadmin /showrepl

3. Force AD replication using the following command:
   

   

   repadmin /syncall /AeD

4. Wait for replication to complete and check if the changes are applied.

Step 3: Remove decommissioned Exchange server from AD     

1. Log in to a Domain Controller using an account with Domain Admin privileges.

2. Press Win + R, type adsiedit.msc, and press Enter to open ADSI Edit.

3. In ADSI Edit, right-click ADSI Edit and select Connect to....

4. In the connection window, choose Configuration from the Select a well known Naming Context drop-down and click OK.

5. Navigate to Configuration > Services > Microsoft Exchange > <Your Exchange Organization> > Administrative Groups > Exchange Administrative Group (FYDIBOHF23SPDLT) > Servers.

6. Locate the decommissioned Exchange server in the list.

7. Right-click the server object and select Delete. Confirm when prompted.

8. Optionally, use Active Directory Sites and Services, DNS, and ADUC to remove any remaining references to the old server.

9. Restart ADManager Plus services to apply the changes and stop it from trying to communicate with the removed server.

Tips     

• If changes are still not applying, log in to Exchange Admin Center and try to update the attributes manually.

How to reach support