How to make SharePoint column fields readOnly / Hidden with PnP PowerShell

 Param( $tenantUrl = "https://YOURSITE.sharepoint.com", $spCredential = (Get-Credential), ) $sites = @("siteOne", "SiteTwo") foreach($name in $sites) { Connect-PnPOnline -Url $tenantUrl/sites/$name -Credentials $spCredential #Field Guids $Summary = Get-PnPField -Identity 98e1ecf3-3ae3-44a4-820c-f1de12ff346a $Country = Get-PnPField -Identity 7d9fd33a-e726-4d7f-b3ed-60e1c8e9690d $Location = Get-PnPField -Identity 0d2db348-a438-48f2-bcd2-461acd6f149f $Language = Get-PnPField -Identity 81b712c3-a41f-4e65-9a3a-8e7110bd9b5e $Topic = Get-PnPField -Identity 5f9fd169-0cf6-4779-a6be-e4635327c9a8 $columns = $Summary, $Country, $Location, $Language, $Topic foreach ($column in $columns) { try{ $column.ReadOnlyField = $true $Column.SetShowInEditForm($false) $column.UpdateAndPushChanges($true) $column.Context.ExecuteQuery(); } catch{ Write-Host "error" $columns } } Write-Host "finished updating read Only fields in" $name }