Outlook does not display HAB

Question

Hello!

Tried to configure the hierarchical address book:

...but Otlook keeps displaying the following (even after ~15 hours + 1 resboot):

No errors were encountered during configuraton and Outlook has no issues in sending/receiving email so what am I missing here? Why does Outlook not display the HAB?

Thank you in advance,
Michael

Answer 1

Hi @Mikhail Firsov

I suppose the cause here is the HAB root group "contoso" missing the value "IsHierarchicalGroup", which means you missed this commend:

Set-Group -Identity "Contoso" -IsHierarchicalGroup $true  

The root group Contoso is also supposed to be in the result of the commend Get-Group -ResultSize unlimited | where {$_.IsHierarchicalGroup -match 'True'} | Format-Table SeniorityIndex,PhoneticDisplayName,DisplayName -Auto.

---

Below are some screenshots from my test.

1.Didn't run the commend Set-Group -Identity "Contoso" -IsHierarchicalGroup $true

Contoso is missing from the result

Outlook shows the same error

---

2.run the commend Set-Group -Identity "Contoso" -IsHierarchicalGroup $true afterwards

Contoso is listed in the result

Outlook displays HAB correctly

---

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

Have you downloaded the latest Offline Address Book in Outlook?
I would download a full and then check again

In Outlook, click File > Account Settings > Download Address Book.

On the Offline address book dialog box that's displayed, make the following selections:

Download changes since last Send/Receive: By default, this check box is selected. Unchecking this box causes a full download of the OAB.

Choose address book: This drop-down list will display the offline address books that are available to you. Depending on what an admin has configured, you might see only one value here (for example, the global address list).

Click OK. The OAB is downloaded and saved on your computer.

https://learn.microsoft.com/en-us/exchange/address-books/offline-address-books/offline-address-books