SharePoint Modern Pages: How to Transform Classic Sites

SharePoint Modern Pages: How to Transform Classic Sites

It’s been years since Microsoft rolled out modern pages in SharePoint. But it’s only recently that companies and organizations have started modernizing their classic sites — and this is where the problem lies.

Transforming a SharePoint site that uses the old “classic” user interface design to the modern experience requires a little bit of technical know-how. But that doesn’t mean it’s hard to do.

In fact, you can do it all within a few minutes.

Before we go through it, let’s discuss first what a modern page is and how it differs from the classic experience.

Let’s start!

What are SharePoint modern pages?

SharePoint modern pages and sites make use of the new Microsoft 365 looks. You can think of it as something like a design overhaul with the modern user interface you associate with the new Microsoft 365 apps.

Here’s an example of what a SharePoint modern site page looks like (taken from the SharePoint Look Book):

Crisis Management SharePoint Modern Page Template

It isn’t just about the looks. As you can see from the section below, SharePoint sites and pages that have the modern user interface are better in terms of functionality.

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    What are the differences between classic and modern pages in SharePoint?

    The most obvious difference is the looks. Aside from the obvious “modern” vs “classic” look, modern pages are designed to work flawlessly on mobile. This is a serious issue with the classic sites since you have to configure the design yourself to look good on mobile.

    To give you an example, here’s how a classic team site looks like:

    A SharePoint team site with a classic page

    It looks okay, right? But when you view it on mobile, it doesn’t shrink or respond according to the size of the screen. It stays the same…

    How a SharePoint classic site looks on mobile

    Here’s the modern version of this SharePoint page:

    A SharePoint team site with a modern page

    When viewed on mobile, it still looks good:

    How a SharePoint modern site looks on mobile

    Editing a page is also easier with the modern experience. It actually feels like editing a webpage with a modern page builder.

    How to edit a SharePoint site with the modern page builder

    Editing a classic page is a bit troublesome, especially when you’re used to modern tools.

    How editing a classic SharePoint page looks like

    In general, with the classic SharePoint experience, you are responsible for most of the designs and feel of the site. The modern user experience takes all of this away and lets Microsoft handle the design and feel.

    How to convert classic pages to modern pages in SharePoint?

    Let’s proceed with the meat of this article — the steps you need to take to modernize an existing classic site or page to a modern one.

    Many of the steps here may sound a little bit technical. But I assure you, it’s not that technical as you think. Plus, by following the steps I outlined here, all you need to do is copy and paste the scripts and you’re done.

    Administrator Windows PowerShell

    Note that using PowerShell to convert the page to modern only works with out of the box web parts. Anything custom would need to be recreated using SharePoint Framework (SPFx).

    To start, you need to install the latest PnP PowerShell on your computer. The easiest way to do this is by opening your Windows PowerShell and run it as an administrator.

    How to run Windows PowerShell as administrator

    Run the following command on Windows PowerShell:

    Install-Module SharePointPnPPowerShellOnline

    If you already have the latest module installed, nothing will happen. If you don’t have the latest module yet, the installation will take place. Agree to install and import the NuGet provider as well as the modules from ‘PSGallery’.

    How to install the modern SharePoint PowerShell using Windows PowerShell

    Then, enter two more commands to avoid getting any blocked error messages when you run more commands.

    Set-ExecutionPolicy RemoteSigned

    The result will be this:

    How to change the execution policy on Windows PowerShell

    Administrator Windows PowerShell ISE

    The next step will be done on the Windows PowerShell ISE. The same as the step earlier, you need to run it as an administrator.

    Like this:

    How to run Windows PowerShell ISE as administrator

    After that, all you have to do is paste the script below and run it.

        Converts all classic wiki and web part pages in a site. 
        You need to install PnP PowerShell version 3.16.1912.* (December 2019) or higher to use this script.
        Sample includes:
            - Conversion of wiki and web part pages
            - Connecting to MFA or supplying credentials
            - Includes Logging to File, log flushing into single log file        
        Convert-WikiAndWebPartPages.ps1 -SourceUrl "" -TakeSourcePageName:$true
        Useful references:
    param (
        [Parameter(Mandatory = $true, HelpMessage = "Url of the site containing the pages to modernize")]
        [Parameter(Mandatory = $false, HelpMessage = "Modern page takes source page name")]
        [bool]$TakeSourcePageName = $false,    
        [Parameter(Mandatory = $false, HelpMessage = "Supply credentials for multiple runs/sites")]
        [Parameter(Mandatory = $false, HelpMessage = "Specify log file location, defaults to the same folder as the script is in")]
        [string]$LogOutputFolder = $(Get-Location)
        Write-Host "Connecting to " $SourceUrl
            Connect-PnPOnline -Url $SourceUrl -UseWebLogin
            Start-Sleep -s 3
            Connect-PnPOnline -Url $sourceUrl -SPOManagementShell -ClearTokenCache
            Start-Sleep -s 3
        Write-Host "Ensure the modern page feature is enabled..." -ForegroundColor Green
        Enable-PnPFeature -Identity "B6917CB1-93A0-4B97-A84D-7CF49975D4EC" -Scope Web -Force
        Write-Host "Modernizing wike and web part pages..." -ForegroundColor Gree
        # Get all the pages in the site pages library. 
        # Use paging (-PageSize parameter) to ensure the query works when there are more than 5000 items in the list
        $pages = Get-PnPListItem -List sitepages -PageSize 500
        Write-Host "Pages are fetched, let's start the modernization..." -ForegroundColor Green
        Foreach($page in $pages)
            $pageName = $page.FieldValues["FileLeafRef"]
            if ($page.FieldValues["ClientSideApplicationId"] -eq "b6917cb1-93a0-4b97-a84d-7cf49975d4ec" ) 
                Write-Host "Page " $page.FieldValues["FileLeafRef"] " is modern, no need to modernize it again" -ForegroundColor Yellow
                Write-Host "Processing page $($pageName)" -ForegroundColor Cyan
                # -TakeSourcePageName:
                # The old pages will be renamed to Previous_.aspx. If you want to 
                # keep the old page names as is then set the TakeSourcePageName to $false. 
                # You then will see the new modern page be named Migrated_.aspx
                # -Overwrite:
                # Overwrites the target page (needed if you run the modernization multiple times)
                # -LogVerbose:
                # Add this switch to enable verbose logging if you want more details logged
                # KeepPageCreationModificationInformation:
                # Give the newly created page the same page author/editor/created/modified information 
                # as the original page. Remove this switch if you don't like that
                # -CopyPageMetadata:
                # Copies metadata of the original page to the created modern page. Remove this
                # switch if you don't want to copy the page metadata
                ConvertTo-PnPClientSidePage -Identity $page.FieldValues["ID"] `
                                            -Overwrite `
                                            -TakeSourcePageName `
                                            -LogType File `
                                            -LogFolder $LogOutputFolder `
                                            -LogSkipFlush `
                                            -KeepPageCreationModificationInformation `
        # Write the logs to the folder
        Write-Host "Writing the conversion log file..." -ForegroundColor Green
        Write-Host "Wiki and web part page modernization complete! :)" -ForegroundColor Green

    Here’s how it looks on Windows PowerShell ISE:

    How run the SharePoint modernizing script on Windows PowerShell ISE

    Then, you will have to enter the following:

    • URL of the site
    • Username
    • Password

    Wait a few seconds and you will receive the notice that the modernization is complete.

    How to complete the modernization process on SharePoint pages using Windows PowerShell ISE

    That’s it! If you check on the pages of the site, you will notice pages that start with “Migrated_”. These are the modernized versions of your existing pages.

    Migrated pages after modernizing a classic SharePoint site

    By default, SharePoint will make your migrated home (page) the homepage. But if you want to make some other page into the home page, all you have to do is right-click on it and select “Make homepage”.

    How to make a site page the homepage in SharePoint

    As you can see, transforming a classic site and its page to that of a modern one isn’t that hard. When done right, you can actually do it within five minutes if your SharePoint site isn’t that big.

    How to create a classic site or page in SharePoint online?

    Even though there’s already a modern user interface, Microsoft has no plans (yet) to unplug the classic experience. That’s why you can still create a classic site using the new SharePoint Online.

    To do so, head over to your SharePoint admin center. You can access it simply by inserting “-admin” on your SharePoint link.

    For example, if your link is “”, the admin center link is “”.

    Once you’re on the admin center, simply head over to your “Active sites” and click the “Create” button.

    How to create a new modern site in SharePoint

    Then, click the “Other options” below.

    How to create a new SharePoint site without a Microsoft 365 Group

    On the template dropdown, everything is a classic site experience except for the “Team site”. If you want to see more templates, simply click on the “More templates” button.

    How to see more templates when creating a SharePoint site

    You will then be brought to the classic way of creating a SharePoint site. All you have to do now is select a template and you’re good to go.

    How to create a classic site in SharePoint

    Why is it best to use modern pages?

    The question that I usually get about this topic is “why should we use modern SharePoint at all?’. When you think about it, it makes sense to either keep working on your classic site or else, create a new one.

    But there are some compelling reasons why you might want to modernize your classic site. Some of these reasons include:

    • Beautiful sites: Though you can still design a classic site and make it stunning, nothing still beats the way modern sites look and feel. In addition, Microsoft will handle most of the work itself.
    • Mobile responsive: Perhaps the most compelling reason of all is how easy it is to browse modern sites on a mobile device. SharePoint’s modern user interface is designed to work with mobile-first.
    • Easy to configure: The modern user interface has new web parts that are easier to set up without needing technical knowledge.
    • Faster than the classic experience: The modern experience utilizes the new way of creating sites and pages — most of what you create is in the web browser. It doesn’t send the whole layout over the network which causes a bottleneck in the servers.

    Though there are a few more reasons, these four are my favorites. Personally, even if Microsoft keeps on reassuring everyone that they will still keep up the classic experience, it’s obvious that the modern user interface is the future.

    By the way, if you have had any trouble modernizing your site pages yourself, don’t hesitate to reach out to me anytime. Though it’s not that hard to do, there are a few instances where you might need assistance.

    About Ryan Clark

    As the Principal Solutions Architect at Mr. SharePoint, I help companies of all sizes better leverage Modern Workplace and Digital Process Automation investments. I am also a Microsoft Most Valued Professional (MVP) for Office Apps & Services.

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    1 year ago

    If i use the PowerShell script you provided on a classic meeting workspace, will it still function the same in a modern page? I know that the feature was removed back with the release of SP 2013but we had it built in to some of our sites and templates so we have been using them for quite some time.

    Suny Abraham
    Suny Abraham
    11 months ago

    Thoughts on transformation / migration of existing Content Editor and Script Editor webparts in Classic Sharepoint sites to Modern SharePoint Sites ?

    9 months ago

    It looks like the -Overwrite switch does not work with the latest version of PNP. That might be something that needs looking into, but overall, the Script works great.

    Would love your thoughts, please comment.x
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