Overcoming Common Migration Challenges in SharePoint

Welcome back to the podcast! If you have been listening to our recent episodes, you know we spend a lot of time talking about how to get the absolute most out of your digital workspace. Today, we are expanding on a topic that hits close to home for almost every IT administrator, project manager, and business leader out there: moving your content from the old ways of doing things into the new era of collaboration. Specifically, we are tackling the hurdles of moving from classic to modern SharePoint environments.

In this post, we will take a deep dive into data compatibility, complex permissions, and customization hurdles. We will also look at best practices to keep your content secure and organized so your transition is as smooth as possible.

If you want to catch up on the foundational discussions around this topic, make sure to listen to our related episode, Classic vs Modern SharePoint: Which Should You Use? Now, let us dive into the details of conquering your migration project!

Introduction to SharePoint Migration

Migrating your organization's content is never just a simple "copy and paste" exercise. It is an evolutionary step for your business processes, security models, and team culture. When you decide to move your enterprise data forward, you are essentially renovating your digital office space. You want to make sure the foundation is stable, the rooms are organized logically, and everyone knows where to find their tools.

However, projects of this scale come with friction. Without a clear map, organizations often find themselves stuck halfway through a migration, dealing with broken links, missing permissions, and frustrated users who prefer the legacy system simply because it is what they know. Understanding the common roadblocks ahead of time is your best defense against project delays and budget overruns.

Understanding the Shift: Classic vs. Modern SharePoint

Before you can fix migration challenges, you must understand what makes the modern experience so different from the classic architecture your organization might have relied on for over a decade. Classic SharePoint was built on a server-side framework that allowed deep, granular control over code, master pages, and custom layouts. While this gave developers immense power, it also created massive technical debt.

Modern SharePoint shifts toward a cloud-first, responsive, and client-side paradigm. Pages load faster, layouts adjust seamlessly to mobile devices, and the user interface feels fresh and intuitive. Furthermore, the site architecture has changed drastically. Instead of deep, complicated hierarchical structures filled with subsites and inherited permission nightmares, modern environments utilize a flat architecture where every site stands independently, connected through Microsoft 365 Hub sites.

Common Migration Challenges

Transitioning from classic to modern is a rewarding journey, but it is rarely a zero-effort toggle switch. Organizations typically run into three major categories of roadblocks: data compatibility, complex permissions, and customization hurdles. Let us break down each of these challenges and look at how you can overcome them.

Data Compatibility and Complex Permissions

One of the most immediate headaches during a SharePoint migration is data compatibility. Over the years, your classic sites likely accumulated duplicate files, outdated documents, broken folder structures, and critical metadata that your business processes rely on. If you simply lift and shift messy data into a modern environment, you are just moving your digital clutter to a new address.

Furthermore, metadata integrity is a massive concern. If custom columns, taxonomy terms, or content types do not map correctly to your modern libraries, your teams will lose vital business context. This leads to documents that are nearly impossible to find using modern search tools.

Then, there is the issue of permissions. Classic environments often feature deeply nested permission structures inherited from parent sites and subsites. When you move to a flat modern architecture, those inherited rules do not always translate cleanly. A poorly executed permission migration can result in two severe security risks:

• Users gaining unauthorized access to sensitive financial, human resources, or executive documents.
• Users being accidentally locked out of files they need to perform their daily work.

How to overcome it: Conduct a thorough content health check before you migrate. Identify obsolete files, archive or delete duplicates, and clean up your folder structures. Run pilot migrations to test how your metadata and permission groups behave in the modern target environment before unleashing the move on your entire organization.

Customization Hurdles

If your organization heavily customized its classic SharePoint environment using InfoPath forms, SharePoint Designer workflows, custom master pages, and server-side web parts, you are facing a significant modernization barrier. None of these legacy tools are supported in the modern experience in the same way.

Classic pages relied heavily on server-side code and heavy master pages that dictated every pixel of branding. Modern SharePoint, by contrast, relies on client-side web parts built with the SharePoint Framework (SPFx) and applies branding through supported themes and site designs rather than custom master pages. While this improves upgrade stability and mobile responsiveness, it means your old custom solutions will break.

How to overcome it: Audit all existing customizations during your early planning phase. Determine which custom features are actually still in use by the business—you will often find that a large percentage of legacy customizations are obsolete. For the features you must keep, replace classic workflows with Power Automate, swap InfoPath forms for Power Apps, and rebuild custom user interfaces using SPFx web parts.

Best Practices for a Secure and Organized Migration

Knowing the challenges is only half the battle. To ensure your migration is a success, you need a structured strategy rooted in industry best practices. Here is how you can guide your organization safely across the finish line:

1. Establish a Comprehensive Migration Plan

Do not rush the execution phase. Take time in the early phase to define your goals, categorize your sites by business impact, and build a realistic timeline. Break the project down into manageable migration waves rather than trying to move everything overnight.

2. Leverage the Right Tools

Do not try to move enterprise-grade data volumes manually. Utilize dedicated migration tools and utilities such as ShareGate, the Microsoft Migration Manager, the SharePoint Modernization Scanner, and the Microsoft Page Transformation Tool. These utilities help analyze your readiness, map content accurately, and automate repetitive transformation tasks.

3. Modernize Your Governance and Security Policies

Moving to a modern, flat architecture requires a fresh approach to governance. Define new rules for site provisioning, name conventions, and external sharing. Ensure that Microsoft Purview compliance labels, data loss prevention (DLP) policies, and retention schedules are actively applied to protect sensitive organizational data in the cloud.

4. Focus Heavily on User Adoption and Training

The best technology in the world will fail if your employees do not know how to use it or actively resist the change. Secure executive sponsorship early, identify enthusiastic "Super Users" across different departments to act as peer champions, and provide clear training sessions that highlight the benefits of the new platform.

Conclusion and Next Steps

Migrating from classic to modern SharePoint is undeniably a major undertaking. It requires careful planning, a willingness to shed legacy technical debt, and a strong commitment to user training and governance. However, the payoff is immense. By moving to the modern experience, you unlock lightning-fast performance, beautiful mobile responsiveness, robust security standards, and seamless integration with the entire Microsoft 365 suite, including Microsoft Teams, OneDrive, and Power Automate.

Do not let migration anxiety keep your organization stuck in the past. Take it one phase at a time, lean on automated migration tools, and keep your users informed every step of the way.

Ready to learn more about transforming your digital workplace? Head over to the podcast and listen to our full episode: Classic vs Modern SharePoint: Which Should You Use?