Repair Microsoft Exchange Offline Address Book (OAB) 0x80190194 Error

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Outlook error “0x80190194” can occur in Outlook when users try to update the Exchange Offline Address Book (OAB) by using the client. This error occurs when only Web Distribution is enabled for your offline address book file. First, let us know about downloading the offline address book file to your Outlook client.

According to users who also viewed error code 0x80190194 in Outlook, there are several reasons that can cause this issue:

  • Offline address book files cannot be found on Client Access Server
  • Incorrect or incorrectly configured system settings
  • Incorrect entries in the Windows registry
  • Damaged arbitration mailboxes

Check the application logs to see if anything is related to the same issue:

  • Find out which database the users (problem users) are in and check the PF folder database (specify the correct server).
  • Can you create another offline address book, replicate it, and use this new address book on that database to see if it fixes the problem?
  • Go to the properties of the offline address book, make sure versions 2 and 3 are enabled, public folder distribution is enabled, and the correct PF server is enabled.

Run antivirus scan

If all of the above methods did not resolve the 0x80190194 error, there might be a virus or malware that is the root cause of the error. To check if this is the case, I recommend that you perform a full virus scan of your system.

Rename Outlook folder

One of the most common causes that can cause error 0x80190194 is corruption of data that is currently located in the main AppData folder associated with the Outlook application.

Updated: April 2024

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Ultimately, you should be able to fix the problem by going to the application data folder and renaming the existing Outlook folder so that the application creates a new folder. This way, you won’t lose important data that is currently stored in your email, because conversations and attachments are already stored in the cloud.

Follow the steps below to rename your Outlook folder:

  • Press Windows Key + R to open the Run dialog box. Then type “% appdata%” and press Enter to open the AppData folder on your computer.
  • If you are in the AppData folder, go to the Roaming folder and look for the “Outlook” entry. When you finally find it, right-click it and choose Rename from the context menu that appears.
  • Name the Outlook folder “Outlook.old” and press Enter to save your changes. Adding the .old extension ensures that your operating system ignores this folder and creates a new folder from scratch to avoid file corruption cases.
  • After applying this change, restart your computer and see if the issue resolves the next time you restart your system.

Use ADSIEdit

  • Open ADSIEdit on the Exchange server.
  • Select Connect Using
  • In the connection settings, under Select a known naming context, select Configuration.
  • Navigate to CN = Address Templates, CN = Addressing, CN = Organization, CN = Microsoft Exchange, CN = Services, CN = Configuration, DC = Domain, DC = Local.
  • Find the lines with “\ 0ACNF: “.
  • ADSIEdit lines with “\ 0ACNF:”
  • Delete the channels indicated in the previous step.
  • Open Exchange Power Shell and enter the following: Update-OfflineAddressBook –Identity
  • Make sure the send / receive was completed successfully on the client computer
  • if you are
  • Reactivate Arbitration and Discovery Mailboxes

Update OAB Files

Open Outlook and click Tools> Send / Receive / Download Address Book in Outlook interface to perform this download.

Users can verify that the OAB files have been updated correctly by looking at Event ID 1008 in the File Distribution Service Application log on the Client Access server. The “Description” section of the event indicates that the update was successful.

This is the 0x80190194 error that you may encounter when you try to update the offline address book files in Exchange using the Outlook client. Error: – E-mail error message (0x80190194): “The operation failed.

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