Bulk remove licenses for a list of users via the Microsoft Graph PowerShell module

mg_user_remove_all_licenses.ps1

Connect-MgGraph -Tenant tenant.onmicrosoft.com -Scopes User.ReadWrite.All

#Import the list of users, or generate it dynamically as needed
$users = Import-Csv .\Users-to-disable.csv
#$users = Get-MgUser -Filter "Department eq 'Marketing'"
 
foreach ($user in $users) {
    Write-Verbose "Processing licenses for user $($user.UserPrincipalName)"
    try { $user = Get-MgUser -UserId $user.UserPrincipalName -ErrorAction Stop }
    catch { Write-Verbose "User $($user.UserPrincipalName) not found, skipping..." ; continue }
 
    $SKUs = @(Get-MgUserLicenseDetail -UserId $user.id)
    if (!$SKUs) { Write-Verbose "No Licenses found for user $($user.UserPrincipalName), skipping..." ; continue }
 
    foreach ($SKU in $SKUs) {
        Write-Verbose "Removing license $($SKU.SkuPartNumber) from user $($user.UserPrincipalName)"
        try {
            Set-MgUserLicense -UserId $user.id -AddLicenses @() -RemoveLicenses $Sku.SkuId -ErrorAction Stop #-WhatIf
        }
        catch {
            if ($_.Exception.Message -eq "User license is inherited from a group membership and it cannot be removed directly from the user.") {
                Write-Verbose "License $($SKU.SkuPartNumber) is assigned via the group-based licensing feature, either remove the user from the group or unassign the group license, as needed."
                continue
            }
            else {$_ | fl * -Force; continue} #catch-all for any unhandled errors
    }}
}