Mailbox name shows as ExternalDirectoryObjectId

AlexandeR TheGreaT 116 Reputation points
2022-11-14T12:11:58.227+00:00

I added a 365 account last week and today after checking the deleted items retention period for all the accounts in org, I noticed that the recently added account displayed no name but the ExternalDirectoryObjectId instead.

260183-screenshot-2022-11-14-141905.png
Is there any reason for this?

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Vasil Michev 100K Reputation points MVP
    2022-11-14T13:48:25.15+00:00

    This is the expected behavior as detailed in this blog post: https://techcommunity.microsoft.com/t5/exchange-team-blog/change-in-naming-convention-of-user-s-name-parameter/ba-p/3284733
    You might also want to check the comments under the article.