Download Idfix Tool

[Kizzy Burnworth]

Microsoft is working to reduce the time required to remediate identity issues when onboarding to Microsoft 365. A portion of this effort is intended to address the time involved in remediating the Windows Server Active Directory (Windows Server AD) errors reported by the directory synchronization tools such as Azure AD Connect and Azure AD Connect cloud sync. The focus of IdFix is to enable you to accomplish this task in a simple, expedient fashion.

IdFix queries all domains in the currently authenticated forest and displays object attribute values that would be reported as errors by the supported directory synchronization tool. The DataGrid view supports the ability to scroll, sort, and edit those objects in a resulting table to produce compliant values. Confirmed values can then be applied to the forest with the ability to undo updates. Transaction rollback is supported.

Suggested values for formatting errors start with the removal of invalid characters and then the value must be updated by you. It is beyond the scope of this utility to determine what you wanted when a mistake in formatting is detected.

The first step is to install the IdFix tool. You can install the tool on any domain joined computer or server. But to use the tool your will need ofcourse to have read and write access to the Active Directory.

Depending on the size of your Active Directory it can take a couple of minutes until IdFix is completed. You can see the status in the lower-left corner of the tool. Once the query is completed any errors are listed in the tool

If you have a lot of objects in your Active Directory or when you are only going to sync a part of your AD users to Azure AD. Then you probably want to query a portion of your Active Directory. This is possible with IdFix.

IdFix is a great tool to easily find any Active Directory object errors before you start the synchronization to Azure AD. If you are only going to sync a part of your Active Directory then make sure that you apply the Search Base filter.

Ah yes I have done this now it just confused my as the current value and updated value were the same, i thought this tool was supposed remedy these issues automatically and suggest an alternative UPN, it just confused me that they were both the same, being cautious i created a few test users and then realised you have to manually update by highlighting and providing an alternative internet routable address so i just replaced the "aa.local with @ouremaildomainname.co.uk

Now the ID fix tool does not pick up the test accounts i created and i tested their logon and network resource access which appear to be unaffected so all seems good, thansk for the reply though i really appreciate it.

IdFix is used to perform discovery and remediation of identity objects and their attributes in an on-premises Active Directory environment in preparation for migration to Azure Active Directory. IdFix is intended for the Active Directory administrators responsible for directory synchronization with Azure Active Directory.

The Microsoft Office 365 IdFix tool allows you to identify and remediate object errors in the Active Directory in preparation for deployment to Azure Active Directory or Office 365. You can then successfully synchronize users, contacts, and groups from the on-premises Active Directory into Azure Active Directory.

Thank you Ali for the Exchange Hybrid article and associated links. Your website is extraordinary. Wonderfully put together with meticulous detail and a generous offering to the world at large. Quick observation on this page, Windows 2008 R2 and above the IDFix should not be run on the domain controller, could be helpful. Best.

When trying to do a query it throwing error The following attributes are present in the schema but are not marked for replication to the globalcalalog and will not be analyzed for errors. Do you want to continue? IscritialSystemobject

I've created a test domain ad.domainname.com which should be non-routable. My test users UPN is te...@ad.domainname.com and as such
I'm expecting that idfix should query the users and give back a top level domain error however they all pass the query test .
Has anyone experienced anything like this before ??? Does IDFix ignore a prefix in the upn suffix after the @ "ad" and then as the domainname.com does routable it's not an issue per se
Thanks in advance

There is a handy tool from Microsoft called IdFix, which helps you clean up your On-Premises Active Directory (AD) before you synchronise or migrate it to Office 365 i.e. into the cloud. IdFix will cleverly identify errors such as duplicates and formatting problems in your On-Premises Active Directory before you begin the migration to Office 365. I recommend you run this as a prerequisite step before you start your migration to Office 365.

If you would like to know more about the tool IdFix, I suggest you read the guide first before running the tool. The guide has everything you need to know. You should find the tool straight-forward to use.

Having met the prerequisites, you will now gain firsthand experience in leveraging IdFix to identify and resolve Azure AD Connect errors efficiently. But first, you must install the IdFix tool on any domain-joined computer or server.

After installing the IdFix tool, you will fill in the initial blank page by scanning for errors. Think of this process as peeling back the layers to reveal any hidden imperfections in your Azure AD setup.

While on IdFix, click Query in the menu bar to start the AD scan, then click Yes on the prompt to continue despite the Schema Warning. This warning alerts you about some attributes that are not marked for replication.

IdFix duplicate error, as illustrated below, occurs when two or more objects share identical values in an attribute configuration. The issue typically arises between two user objects or various mail-enabled objects, like a distribution group and a user object.

Blank attribute issues typically occur due to missing or incomplete data in specific attributes of user accounts or other directory objects. Addressing these issues may involve manual data entry, data migration, scripting, or other methods, depending on the underlying cause of the issue.

Encountering an invalid character error during domain operations can impede the smooth functioning of your AD environment. This error typically arises when attempting to create, modify, or rename objects within AD due to the presence of characters not supported by AD.

Realized you made changes you are not supposed to? Worry not! Undoing unwanted changes is effortless with the IdFix tool. Any changes made using the IdFix tool are usually logged in a transaction log, which lets you revert the changes previously made with the tool.

With all errors fixed, you can start installing and configuring Azure AD Connect. You must install this tool on a domain-joined server in your network to synchronize your on-premise AD with Azure AD. This synchronization aligns user accounts, groups, and objects in both AD environments.

Throughout this tutorial, you have learned how IdFix lets you identify common errors, be it duplicate user principal names, invalid characters, and formatting inconsistencies. IdFix empowers administrators like yourself to preemptively address issues before initiating synchronization with Azure AD.

Much like preparing your network for a successful Microsoft 365 implementation, it is equally important to ensure that your on-premises directories are free from any issues that might impact a successful synchronization of users, groups, and contacts to your tenant.

Click OK to proceed past the IdFix Privacy Statement dialog shown in Figure 2-19. This dialog is displayed because the IDFix application will review your data and provide reports containing sensitive information.

As shown in Figure 2-21, once the query has been completed, a list of all detected issues will be displayed with an error description for each. The total object and error counts will be displayed in the lower-left corner.

Selecting a single error will allow you to use the Action column to define the behavior that should be used to resolve it. As shown in Figure 2-22, you can choose to Edit, Remove, or Complete the object in question.

When selecting Edit, you will not be allowed to edit the value in error manually. Instead, the IDFix tool will simply apply the update displayed in the Update column. You should review this new value below, allowing IDFix to make the change.

I've recently come to realize that having our domain end in .local is going to prevent us from being able to set up DirSync with Office 365. I plan to use Microsoft's IdFix tool to correct issues with our AD as well as migrate our domain to something like ad.example.com. I will make sure the NETBIOS and UPN to be consistent with the current domain.

Our network is two offices across the country connected by a VPN with two different subnets. We have two DCs running AD and DNS, one each location. It's a fairly small Active Directory with about 1750 directory objects.

Depending on what services you have running (Exchange, etc), forest functional level, domain functional level, etc you may be able to use Microsoft's Domain Rename tool which includes a good list of conditions and effects.

Regardless of the method mentioned, there is a chance users may end up unable to log into their PCs. Services and such breaking will largely depend on how well your configurations are documented, etc, as this will presumably break any references to computers/servers via the old domain name, if you have Windows DHCP servers their new names will have to be authorized or your DHCP clients won't accept their DHCP offers, etc. Keeping the same NETBIOS and UPNs (if it makes sense in your case) will help a good deal with regard to service accounts used by appliances and 3rd party software, and configurations for authorized/blocked AD groups.

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