Cannot authenticate AAD user to PowerBi using the Management PowerShell Module

Hi,
I am trying to authenticate to PowerBi service using the powershell management module using a Azure Active Directory user with a PowerBi Administrator role. The reason for this is because I need to perform some actions on the admin Portal which I cannot (as of yet) do with a Service principal, namely assign workspaces to a premium capacity. https://stackoverflow.com/questions/70846646/can-a-service-principal-access-admin-portal-settings-in-powerbi-service/70847582#70847582

I can successfully login with a service principal, create workspaces, assign workspace users etc...
However, when I adapt the same auth code to authenticate a AAD user I get the following error:

Connect-PowerBIServiceAccount: One or more errors occurred. (User and password authentication is not supported in .NET Core or with DeviceCode authentication.)

(I am running the PowerShell on Azure Cloud shell for development, but later will add it to a YAML pipeline)

I am using the following code:

$tenantId = $((Get-AzContext).Tenant.Id)
$PbiUserPassword = Get-AzKeyVaultSecret -VaultName "xxxxxxxxxxxxxx" -Name "pbiAdminPassword" -AsPlainText
$securePbiUserPassword = convertto-securestring $PbiUserPassword -asplaintext -force

$userName = "xxxxxxxxxxxxxxxxxxxx"
$userEmail = "$userName@xxxxxxx.onmicrosoft.com"
$userId = "xxxxxxxxxxxxxxxxxxxxxxxxxxx"

echo "Tenant Id found ===> $tenantId"
echo "User Email found ===> $userEmail"
echo "App secret found ===> $securePbiUserPassword"
echo "User id ===> $userId"
# all echoes are displaying the correct credentials

# echo "Install Power BI Management PowerShell Module..."
# $moduleName = "MicrosoftPowerBIMgmt"
# $module = Get-Module $moduleName -ListAvailable -ErrorAction SilentlyContinue
# Install-Module -Name $moduleName -Force -Scope CurrentUser -SkipPublisherCheck 

$credentials = New-Object System.Management.Automation.PSCredential ($userId, $securePbiUserPassword)

echo "Log in to Power BI"
Connect-PowerBIServiceAccount -Credential $credentials 

The documentation available is very focused around login in with service principals so would really apreciate any guidance on this aspect as this a critical aspect for our team. It would also be amazing to see enhanced permissions for the powerBi admin API for service principals!

Thank you
Joao
@CattieCat

Start with Connect-PowerBIServiceAccount and the PSCredential construction shown in the issue, then review the Power BI management module's authentication documentation and behavior in Azure Cloud Shell/.NET Core. Done means identifying a supported AAD user authentication path or clearly documenting that this scenario is unsupported and what limitation applies.