RemoveO365License.ps1

# Install-Module -Name AzureADPreview -RequiredVersion 2.0.0.1 -SkipPublisherCheck
Import-Module AzureADPreview -RequiredVersion 2.0.0.1

# Tenant Name
$tenantID = "mytenant.com.au"

# Admin User for the Tenant
$username = "admin@mytenant.com.au"
# Password for the Admin User
$password = '**********' | convertto-securestring -AsPlainText -Force
$credentials = New-Object System.Management.Automation.PSCredential $Username,$password

#Connect to your AzureAD tenant
Connect-AzureAD -TenantId $tenantID -Credential $credentials -Confirm

# Removing a license
# Get the User
$user = get-azureaduser -ObjectId "user@mytenant.com.au" 

# Assigned License
$user.AssignedLicenses 
$lic = $user.AssignedLicenses.SkuId

# Remove the license
$body = @{
    addLicenses = @()
    removeLicenses= @($Lic)
}
Set-AzureADUserLicense -ObjectId "user@mytenant.com.au" -AssignedLicenses $body

# Read in the user to check license has been removed
$user = get-azureaduser -ObjectId "user@mytenant.com.au" 
# Assigned Licenses should be empty
$user.AssignedLicenses