Shared Mailbox Creation down?

Bryan Lanier 5 Reputation points
2023-03-29T14:06:54.18+00:00

Hi,

I have been trying to create a shared mailbox for a few days now - but everytime I try I get an error as seen below User's image

Looking at the network requests, there is a slightly more descript error

User's image

I have looked around online and anything relating to this error is way out of scope of what I'm doing - I'm just trying to use the 365 Admin GUI to create a shared mailbox. Even the account with the highest authority on our Azure tenant gets the same error when trying.

So is something actually down on Microsoft's side, or is something wrong with out tenant? Getting a little frustrated at this point.

Thanks,

-Bryan Lanier

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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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4 answers

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  1. Vasil Michev 91,126 Reputation points MVP
    2023-03-29T14:12:37.84+00:00

    Seems to work fine here, but it won't be the first time the service is having an issue isolated to some geo. What permissions does the user you're running this with have?
    User's image

    Did you try the good old PowerShell method?

    New-Mailbox -Name "blabla" -Shared


  2. Aholic Liang-MSFT 13,731 Reputation points Microsoft Vendor
    2023-03-30T05:54:17.5666667+00:00

    Hi,

    I noticed that you are using an older version of PowerShell  1.0 to connect to the Exchange online PowerShell module .

    I wonder what version of the Exchange online connect-exchangeonline you are reminded to connect to when you run  PowerShell module?

    Is it a V3 version?

    User's image

    If you can, we recommend that you update your version of Windows PowerShell to the latest version, try connecting to Exchange Online PowerShell again and use this command to create a shared mailbox to see if there are any changes.

    Here's a guide to updating Windows PowerShell for your reference:

    Update PowerShell to the Latest Version - Active Directory Pro

    (Kindly note:Microsoft provides third-party contact information to help you find additional information about this topic. This contact information may change without notice. Microsoft does not guarantee the accuracy of third-party contact information.)


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  3. Bryan Lanier 5 Reputation points
    2023-03-30T15:14:26.99+00:00

    I would like to thank Vasil Michev for his help in debugging this issue.

    The other very useful source was this reddit thread discussing a similar issue (https://www.reddit.com/r/Office365/comments/118nw38/comment/j9n274y/?utm_source=share&utm_medium=web3x)

    Vasil was right that I just needed to add the "Mail Recipient Creation" permission to my user. I did so with the following command:

    New-ManagementRoleAssignment -Role "Mail Recipient Creation" -User "bryan@rnwbl.com"
    
    

    After that (and after signing into Connect-ExchangeOnline again), I was able to create the shared mailbox

    User's image

    If I had to guess, our default permissions got messed up earlier this month when we were de-vesting and un-migrating a previously acquired company. When investigating who had the "Mail Recipient Creation" permissions, all of the users with the non-delegated version of the permission were placeholder accounts used for the migration.

    Regardless, very thankful for the help from Vasil, and grateful the issue is resolved


  4. Mark Woodland 0 Reputation points
    2023-05-15T16:16:03.39+00:00

    I would like to thank Vasil Michev for his help in debugging this issue. The other very useful source was this reddit thread discussing a similar issue (https://www.reddit.com/r/Office365/comments/118nw38/comment/j9n274y/?utm_source=share&utm_medium=web3x) Vasil was right that I just needed to add the "Mail Recipient Creation" permission to my user. I did so with the following command: PowerShellCopy

    Thank you all for solving this issue. All the best.

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