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Sop-3080 avatar image
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Sop-3080 asked KyleXu-MSFT commented

Public folder sync error

Hi everyone,

I'm in the process of migrating mailboxes to EXO, So, far I'm able to migrate them without any issues but now that I'm focusing on Public folders, I'm having some issue.

As per Microsoft Documentation, I'm supposed to run a script to sync it to EXO and when I do I get the following error:

"WARNING: Property expression "Offline Address Book - SomthingNet" isn't valid. Valid values are: Strings formed with characters from A to Z (uppercase or lowercase), digits from 0 to 9, !, #, $, %, &, ', *, +, -, /, =, ?, ^, _, `, {, |, } or
~. One or more periods may be embedded in an alias, but each period should be preceded and followed by at least one of the other characters. Unicode characters from U+00A1 to U+00FF are also valid in an alias, but they will be mapped
to a best-fit US-ASCII string in the e-mail address, which is generated from such an alias."


Any idea on how to fix that?

Thanks,

office-exchange-server-administrationoffice-exchange-online-itprooffice-exchange-server-mailflow
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1 Answer

KyleXu-MSFT avatar image
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KyleXu-MSFT answered KyleXu-MSFT commented

@Safs-3080

Based on your description, I guess you are using Exchange 2010 server.

Did you run command below to check the public folder name in your organization?

 Get-PublicFolderStatistics -ResultSize Unlimited | Where {($_.Name -like "*\*") -or ($_.Name -like "*/*") } | Format-List Name,Identity

By default, there exist two invalid name for Public folder migration on Exchange 2010:
110051-qa-kyle-09-48-46.png

You need to rename them before migration, for more detailed information, you can have a look about this article: Prerequisite steps on the legacy Exchange server

 Set-PublicFolder -Identity <public folder identity> -Name <new public folder name>

After that, delete exist migration request and create a new migration request again.


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@Safs-3080

I am writing here to confirm with you any update about this thread now?
If the above suggestion helps, please be free to mark it as an answer for helping more people.

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