Migrating to SharePoint Online: Common Pitfalls and How to Avoid Them

As organizations continue to embrace digital transformation and cloud-first strategies, migrating from on-premises SharePoint environments to SharePoint Online (part of Microsoft 365) has become a top priority. The benefits are compelling—enhanced collaboration, automatic updates, scalability, and tighter integration with other Microsoft 365 tools like Teams, OneDrive, and Power Platform. However, SharePoint Online migrations are rarely plug-and-play. Without proper planning, organizations can face a range of challenges—from data loss to user resistance. In this blog post, we’ll explore the most common pitfalls organizations encounter during a SharePoint Online migration—and provide practical guidance on how to avoid them.

Pitfall #1: Underestimating the Complexity of Your Existing Environment

Many organizations assume that migrating to SharePoint Online is as simple as copying files from one location to another. In reality, your current SharePoint environment may include custom workflows, third-party web parts, complex permission hierarchies, and outdated content—all of which need to be carefully assessed before migration.

In order to avoid underestimating the complexity of your existing SharePoint environment, organizations should conduct a comprehensive pre-migration assessment. This means you need to identify:

• Custom features and workflows that may need to be rebuilt or re-engineered in the cloud
• Legacy content that can be archived or discarded
• Permissions structures that need simplification

Tools like SharePoint Migration Assessment Tool (SMAT) or third-party solutions (e.g., ShareGate or AvePoint) can help provide visibility into potential roadblocks.

Pitfall #2: Poor Information Architecture

SharePoint Online operates differently from on-prem environments. Site collections, hub sites, and modern pages offer new ways to organize content. If your information architecture is outdated or poorly designed, simply lifting and shifting it to the cloud can result in a messy and confusing user experience. Organizations should take this opportunity to redesign your information architecture in order to avoid poor performance:

• Use Hub Sites to create logical groupings of related content
• Flatten deeply nested folder structures
• Leverage metadata and content types for better search and filtering
• Align architecture with how teams actually work today—not how they worked five years ago
  

Pitfall #3: Failing to Clean House Before Migration

It can be tempting for organizations to migrate everything “just in case.” But this approach leads to bloated storage, slower migrations, and unnecessary clutter in your new environment. Before migration, it is best to adopt a “spring cleaning” mindset:

• Work with business owners to identify obsolete, redundant, or outdated content
• Establish clear retention policies
• Migrate only what’s necessary and valuable

Not only does this reduce costs (SharePoint Online storage isn’t free), but it also improves user adoption by making it easier to find relevant content.

Pitfall #4: Ignoring Governance and Compliance

In the rush to migrate, governance often becomes an afterthought. But, without clearly defined rules around site creation, permissions management, and content lifecycle, organizations risk data sprawl, security vulnerabilities, and compliance breaches. It is essential that organizations establish a governance framework before migrating:

• Define who can create sites and under what conditions
• Set naming conventions and metadata standards
• Implement data loss prevention (DLP), sensitivity labels, and auditing policies
• Use Microsoft Purview for compliance and retention management
  

Pitfall #5: Neglecting End User Training and Change Management

Even the most well-executed migration can fail if users don’t understand the new environment. SharePoint Online introduces modern interfaces, new collaboration features, and tighter integration with other Microsoft 365 apps—all of which require a shift in how users work. Instead of neglecting end-user training, businesses should make training and change management a central part of the migration plan:

• Provide role-based training for different user groups
• Create a SharePoint Online champions network to promote adoption
• Communicate early and often about what’s changing and why
• Offer self-service support through an internal knowledge base or FAQ site
  

Pitfall #6: Overlooking Performance and Network Considerations

Migrating large volumes of data—especially with tight deadlines—can place significant strain on your network and impact performance. Additionally, global organizations need to consider latency and data residency requirements. In order to avoid overlooking these performance and network considerations organizations should:

• Schedule migrations during off-peak hours to reduce network strain
• Use the SharePoint Migration Tool or third-party platforms that offer throttling and retry mechanisms
• Consider Microsoft’s FastTrack services for large-scale migrations
• Evaluate CDN (Content Delivery Network) options and Microsoft’s Multi-geo capabilities if you operate globally
  

Pitfall #7: Skipping Post-Migration Validation

After the migration, it’s tempting to declare success and move on. However, without validation and testing, issues can go unnoticed—leading to broken links, missing files, or misconfigured permissions that frustrate users. Organizations should follow these steps to avoid skipping this step:

• Perform post-migration audits to confirm content integrity and structure
• Test key workflows, forms, and integrations
• Solicit feedback from users and address concerns promptly
• Use usage analytics to monitor adoption and adjust support as needed

Wrapping Up

Migrating to SharePoint Online offers significant benefits—but only if it’s done with careful planning, governance, and user enablement. By avoiding the common pitfalls outlined above, organizations can ensure a smoother transition and maximize the value of their Microsoft 365 investment.

Remember, a successful migration isn’t just about moving data. It’s about transforming the way your teams collaborate, access information, and drive productivity in a cloud-first world.

Whether you’re planning a small departmental move or a full-scale enterprise migration, a team of experts such as a Microsoft Managed Services Provider can help guide you through every step of the process—from discovery and planning to execution and post-migration support.