if($newAuthor)
    {
     try {
        if($item.FieldValues["Author"].email.ToLower() -eq $author.ToLower()){
        Set-PnPListItem -List $list `
                        -Identity $item.Id `
                        -Values @{
                            "Author" = $newAuthor
                        } `
                        -UpdateType SystemUpdate

          Log-Message "Setting Author to: $newAuthor for: $fileUrl" "Success"
        }
    }
    catch {
        Log-Message "Failed to update author $newAuthor on $fileUrl" "Error"
    }
  }
  if($newEditor) {
     try {
     if($item.FieldValues["Editor"].email.ToLower() -ne $newEditor.ToLower()){  
 #   "Modified" = $item.FieldValues["Modified"]
#                            "Author" = $item.FieldValues["Author"].Email
            Set-PnPListItem -List $list -Identity $item.id -Values @{
                    "Editor" = $newEditor
                } -UpdateType UpdateOverwriteVersion

            Log-Message "Setting Editor to: $newEditor for: $fileUrl" "Success"
     }   
    }
    catch {
        Log-Message "Failed to update $(if($newAuthor){'author :' & $newAuthor}else{'editor:' & $newEditor}) on $fileUrl" "Error"
    }
   }
if($RetentionLabel)
    {
        Set-PnPListItem -List $list -Identity $item.Id -Label $RetentionLabel -UpdateType SystemUpdate
    }