Script to force the renewal of Content Types

SPOForceRenewalOfCT.ps1

param
(
    # give the URL of the site or when to reset for every site the admin url
    [Parameter(Mandatory=$true)]
    [string]$url,

    # Do we need to use the weblogin
    [Parameter(Mandatory=$false)]
    [switch]
	$useweblogin
)


Function RemoveAllTimeStamps([Microsoft.SharePoint.Client.Web] $web)
{
    if ($web.AllProperties.FieldValues.ContainsKey("MetadataTimeStamp"))
    {
        $web.AllProperties.FieldValues["MetadataTimeStamp"] = [string]::Empty
        $web.AllProperties.FieldValues.Update()
    }
}

$orgTitle = $Host.UI.RawUI.WindowTitle
$Host.UI.RawUI.WindowTitle = "Set Renewal for content types"

if($useweblogin) { Connect-PnPOnline -Url $url -UseWebLogin } else { Connect-PnPOnline -Url $url }

if($url.Contains("-admin.sharepoint.com"))
{
    $sites = Get-PnPTenantSite
    $total = $sites.Count
    $counter = 0
    $sites | % {
        if($useweblogin) { Connect-PnPOnline -Url $_.Url -UseWebLogin } else { Connect-PnPOnline -Url $_.Url }
        $Host.UI.RawUI.WindowTitle = "Set Renewal for content types     $counter / $total"
        RemoveAllTimeStamps (Get-PnPWeb -Includes AllProperties)
        $counter++
        Disconnect-PnPOnline
    }
}
else
{
    #Just do this site collection
    RemoveAllTimeStamps (Get-PnPWeb -Includes AllProperties)
}
Disconnect-PnPOnline

$Host.UI.RawUI.WindowTitle = $orgTitle