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Change AD DS Connector account

How to change AD DS Connector account in Azure AD Connect? After creating an AD DS Connect account with the correct permissions, it’s time to use the new AD DS Connector service account. Let’s look at how to change AD DS Connector account without permission issues and downtime.

Before you start

Before you change the AD DS Connector account, you need to have an AD DS Connector account with the correct permissions. Go through both the articles to understand and configure the AD DS Connector account:

Once you have the AD DS Connector service account configured, let’s proceed on.

Note: Did you change your AD DS Connector account password in Active Directory Users and Computers? You have to insert the new password in Azure AD Connect. Otherwise, synchronization will not work, and you will see the status no-start-credentials in Synchronization Service Manager.

How to change AD DS Connector account

Start Synchronization Service Manager on the Azure AD Connect Server.

Change AD DS Connector account Synchronization Service

Click on Connectors > internal domain > Properties.

In our example, it’s the internal domain with the name exoip.local.

Change AD DS Connector account AD DS Connector

Click Connect to Active Directory Forest. The user name shows the AD DS Connector account.

In our example, it’s the user name MSOL_b3c27fcc1296.

Note: If the user name has the prefix MSOL_, Azure AD Connect created the account in Azure AD Connect setup.

Change AD DS Connector account before

Fill in the new AD DS Connector account details. Click OK to save.

Change AD DS Connector account after

A warning prompt shows up. Click OK.

Synchronization Service Manager prompt

Disable old AD DS Connector account in Active Directory Users and Computers.

Restart the Microsoft Azure AD Sync service under Windows Services. This is to ensure that any reference to the old password is removed from the memory cache.

Change AD DS Connector account restart service

Let’s verify that the Azure AD Connect synchronization works excellent in the next step.

Verify AD DS Connector account synchronization

Start Windows PowerShell as administrator on the Azure AD Connect Server. Then, run the cmdlet to force sync Azure AD Connect (delta sync). The delta sync will only sync the changes between on-premises AD and Azure AD.

PS C:\> Start-ADSyncSyncCycle -PolicyType Delta

Result
------
Success

The Synchronization Service Manager shows the status of success.

Change AD DS Connector account verify status

Click on the internal domain and verify that AD objects synchronization works.

Synchronization Service Manager object details

You successfully changed the AD DS Connector account.

Read more: Conditional Access MFA breaks Azure AD Connect synchronization »

Conclusion

You learned how to change the AD DS Connector account in Azure AD Connect:

  1. Ensure that you have set up the correct AD DS Connector account permissions before you proceed.
  2. Edit the account credentials and restart the Microsoft Azure AD Sync service.
  3. Don’t forget to disable the old AD DS Connector account and remove it after a couple of days when you are satisfied with the results.

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ALI TAJRAN

ALI TAJRAN

ALI TAJRAN is a passionate IT Architect, IT Consultant, and Microsoft Certified Trainer. He started Information Technology at a very young age, and his goal is to teach and inspire others. Read more »

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