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Get-CsOnlineSession : The remote server returned an error: (404) Not Found.

Neethu K A 1 Reputation point
2021-07-13T13:25:37+00:00

'New-CsApplicationAccessPolicy -Identity Test-policy -AppIds "xxxxxxxxxxxxxxxx" -Description "description here"'

While running this command getting an error like this.

Get-CsOnlineSession: The remote server returned an error: (404) Not Found.

Invoke-Command: Cannot validate argument on parameter 'Session'. The argument is null or empty. Provide an argument that is not

null or empty, and then try the command again. 

+ FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Commands.InvokeCommandCommand.

Why this is happening? We are using Windows PowerShell version 5.1.14393.4467. And imported the latest MicrosoftTeams Powershell Module.

I have followed all the steps in the documentation. Also, the firewall and antivirus are off. But still having the same issue.

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Windows Server PowerShell
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.PowerShell: A family of Microsoft task automation and configuration management frameworks consisting of a command-line shell and associated scripting language.
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  1. Rich Matheisen 46,801 Reputation points
    2021-07-13T14:38:50.143+00:00

    Are you running this from the PowerShell ISE? If so, try it from a PowerShell session.

    There are a number of posts that report the same problem, but I haven't found any that offer a verified reason for it.

    1 person found this answer helpful.
  2. Neethu K A 1 Reputation point
    2021-07-16T04:19:49.953+00:00

    It got fixed. We need to set the user "Teams Administrator" role in https://portal.office.com/AdminPortal/Home#/users And it will take up to 24 hours to work.

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