Powershell - Change Intune Application Assignments

Create an app registration 
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# Configuration
$TenantId = ""
$ApplicationId = ""
$ClientSecretValue = ""

# Convert the client secret to a secure string
$pass = ConvertTo-SecureString -String $ClientSecretValue -AsPlainText -Force

# Create a credential object using the client ID and secure string
$cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $ApplicationId, $pass

# Connect to Microsoft Graph with Client Secret
Connect-MgGraph -TenantId $TenantId -ClientSecretCredential $cred

# Group ID - Get the ID of the group
$groupID = 'GroupID' 

# App IDs - list all app ids
$AppIDs = @('')

# Create a hashtable for the Target parameter
$target = @{
    "@odata.type" = "#microsoft.graph.groupAssignmentTarget"
    "groupId" = $groupID
}

# Assign apps to the group
foreach ($AppId in $AppIDs) {
    New-MgDeviceAppManagementMobileAppAssignment -MobileAppId $AppId -Intent 'available' -Target $target
}