Programmatically triggering a group licenses refresh for AzureAD

Azure AD allows us to assign licenses to groups, a nifty feature that has made a host of automation scripts dealing with bulk license assignment obsolete.

A problem I’ve encountered is that when you assign users to a group, license assignments are not processed right away, especially if you didn’t have enough licenses when you assigned the user to the group (and added licenses to the tenant later).

Azure AD has a button to trigger an update manually:

But of course, this can also be automated with PowerShell!

function Invoke-AzHAPIReprocessGroupLicenses{
    <#
        .SYNOPSIS
        reprocesses group license assignment

        .NOTES
        Author: Jos Lieben

        .PARAMETER AzureRMToken
        Use Get-azureRMToken to get a token for this parameter

        .PARAMETER groupGUID
        GUID of the group to reprocess licenses of
    
        Requires:
        - Global Administrator Credentials (non-CSP!)
        - AzureRM Module
        - supply result of get-azureRMToken function
    #>
    param(
        [Parameter(Mandatory = $true)]$AzureRMToken,
        [Parameter(Mandatory = $true)]$groupGUID
    )
    $header = @{
        'Authorization' = 'Bearer ' + $AzureRMToken
        'X-Requested-With'= 'XMLHttpRequest'
        'x-ms-client-request-id'= [guid]::NewGuid()
        'x-ms-correlation-id' = [guid]::NewGuid()
    }   

    $url = "https://main.iam.ad.ext.azure.com/api/AccountSkus/Group/$groupGUID/Reprocess"
    Invoke-RestMethod –Uri $url –Headers $header –Method POST -Body $Null -UseBasicParsing -ErrorAction Stop -ContentType "application/json"
}

Source on GIT: https://gitlab.com/Lieben/assortedFunctions/blob/master/invoke-AzHAPIReprocessGroupLicenses.ps1https://gitlab.com/Lieben/assortedFunctions/blob/master/invoke-AzHAPIReprocessGroupLicenses.ps1

Disclaimer: the ‘hidden azure api’ is not officially supported.

Requires output from the Get-AzureRMToken function

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