Update SharePoint Online Audit settings using powershell

You can use below scrip to update Audit settings in SharePoint online using powershell csom. For updating in all site, just loop through all site collections and update it.


#Load SharePoint CSOM Assemblies
[System.Reflection.Assembly]::LoadFile("<dllPath>\Microsoft.SharePoint.Client.dll") | Out-Null
[System.Reflection.Assembly]::LoadFile("<dllPath>\Microsoft.SharePoint.Client.Runtime.dll") | Out-Null



#$SiteUrl = "https://emiratesgroup.sharepoint.com/sites/spdev"
$Password = ConvertTo-SecureString "<enter pswd here>" -AsPlainText –Force
$User = "jo@domain.com"
$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($User, $Password)

     
        $SiteUrl = $object.SiteCollection
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteUrl)
$Context.Credentials = $credentials

 $spoSite = $Context.Site
    $Context.Load($spoSite)
    $Audit = $spoSite.Audit
    $Context.Load($Audit)
    $Context.ExecuteQuery()

$All = [Microsoft.SharePoint.Client.AuditMaskType]::All;
    $None = [Microsoft.SharePoint.Client.AuditMaskType]::None;
    $CheckIn = [Microsoft.SharePoint.Client.AuditMaskType]::CheckIn;
    $CheckOut = [Microsoft.SharePoint.Client.AuditMaskType]::CheckOut;
    $ChildDelete = [Microsoft.SharePoint.Client.AuditMaskType]::ChildDelete;
    $CheckIn = [Microsoft.SharePoint.Client.AuditMaskType]::CopyCheckIn;
    $Move = [Microsoft.SharePoint.Client.AuditMaskType]::Move;
    $ObjectDelete = [Microsoft.SharePoint.Client.AuditMaskType]::ObjectDelete;
    $ProfileChange = [Microsoft.SharePoint.Client.AuditMaskType]::ProfileChange;
    $SchemaChange = [Microsoft.SharePoint.Client.AuditMaskType]::SchemaChange;
    $Search = [Microsoft.SharePoint.Client.AuditMaskType]::Search;
    $SecurityChange = [Microsoft.SharePoint.Client.AuditMaskType]::SecurityChange;
    $Undelete = [Microsoft.SharePoint.Client.AuditMaskType]::Undelete;
    $Update = [Microsoft.SharePoint.Client.AuditMaskType]::Update;
    $View = [Microsoft.SharePoint.Client.AuditMaskType]::View;
    $Workflow = [Microsoft.SharePoint.Client.AuditMaskType]::Workflow;


$Audit.AuditFlags = $Update, $Undelete, $SecurityChange
$Audit.Update()
$spoSite.AuditLogTrimmingRetention = 90
$spoSite.TrimAuditLog = $true
$Audit.Update()
$Context.ExecuteQuery()

write-host "updated for site:" $object.SiteCollection