OneDrive vs SharePoint: Understanding the Difference

If your business uses Microsoft 365 — and the vast majority of UK businesses do — you have access to both OneDrive and SharePoint as part of your subscription. Yet despite being two of the most widely used tools in the Microsoft ecosystem, the difference between OneDrive and SharePoint remains one of the most common sources of confusion we encounter when working with UK businesses.

Staff save files to OneDrive when they should use SharePoint. Teams create shared folders in OneDrive instead of setting up proper SharePoint document libraries. Managers cannot find documents because they are scattered across individual OneDrives rather than centralised in a team SharePoint site. The result is disorganisation, duplication, inconsistent permissions, and frustrated employees who spend too long searching for the files they need.

This guide explains precisely what OneDrive and SharePoint are, how they differ, when to use each one, and how to set up a file management strategy that keeps your business organised, secure, and productive.

What Is OneDrive?

OneDrive for Business is Microsoft's cloud-based personal file storage service. Think of it as each employee's personal filing cabinet in the cloud. Every user with a Microsoft 365 licence gets their own OneDrive, which is private to them by default. Only the user can see and access their OneDrive files unless they explicitly choose to share specific files or folders with colleagues.

OneDrive syncs seamlessly with the desktop and mobile OneDrive apps, allowing users to access their files from any device, anywhere. Changes made on one device are automatically synced to all others. It integrates deeply with Microsoft Office applications, enabling real-time co-authoring of Word, Excel, and PowerPoint files without the need to email attachments back and forth.

The key characteristics of OneDrive are that it is personal (tied to an individual user account), private by default, and designed for files that primarily belong to one person — even if they are occasionally shared with others.

What Is SharePoint?

SharePoint Online is Microsoft's cloud-based platform for team and organisational content management. Unlike OneDrive, which is personal, SharePoint is inherently collaborative and organisational. SharePoint sites are shared spaces where teams, departments, or the entire organisation can store, organise, and manage documents together.

A SharePoint site belongs to a team or function, not to an individual. When an employee leaves the business, their SharePoint contributions remain intact and accessible. Document libraries in SharePoint can be structured with metadata, content types, and custom views that make it easy to find and organise large volumes of files. SharePoint also provides powerful features like version history, approval workflows, retention policies, and integration with Microsoft Teams.

OneDrive vs SharePoint: Key Differences

When to Use OneDrive

OneDrive is the right choice for files that are personal to a specific employee and do not need to be routinely accessed by the wider team. This includes personal notes and drafts, work-in-progress documents that are not yet ready for team review, individual reference materials, personal templates and working files, and training certificates or individual HR documents.

A useful rule of thumb: if only one person needs regular access to a file, it belongs in OneDrive. If two or more people need regular access, it belongs in SharePoint.

When to Use SharePoint

SharePoint is the right choice for any content that belongs to the business rather than to an individual. This encompasses virtually all official business documents, including company policies and procedures, client files and project documentation, financial records and reports, marketing materials and brand assets, templates used across the team, meeting minutes and action items, contracts and legal documents, and training materials and standard operating procedures.

The Leaver Problem: Why This Matters for GDPR

One of the most critical reasons to get OneDrive-vs-SharePoint right is what happens when an employee leaves your organisation. When a user's Microsoft 365 account is deleted (typically 30 days after they leave), their OneDrive is also deleted — along with everything in it. Microsoft provides a grace period during which a manager can access the departing user's OneDrive, but if nobody acts within that window, the data is gone permanently.

If that departing employee had been storing client files, project documentation, or financial records in their personal OneDrive instead of the appropriate SharePoint site, the business loses access to critical information. Under GDPR, UK businesses have obligations to retain certain data for specified periods. If you cannot access that data because it was in a deleted OneDrive, you may find yourself in breach of your data retention obligations — with potential consequences from the Information Commissioner's Office (ICO).

By contrast, files stored in SharePoint remain accessible regardless of individual user account changes. When an employee leaves, their contributions to SharePoint document libraries, Teams files, and shared resources remain exactly where they are, accessible to the rest of the team without any intervention required.

The impact of file storage strategy on data protection when employees leave

Setting Up a SharePoint-First File Strategy

The recommended approach for any UK business using Microsoft 365 is a SharePoint-first file strategy. This means that the default location for business documents is SharePoint (or Microsoft Teams, which stores files in SharePoint), with OneDrive reserved for genuinely personal working files.

Step 1: Define Your SharePoint Site Structure

Create SharePoint sites that mirror your organisational structure. Common approaches include a site per department (Finance, Marketing, Operations, HR), a site per client or project (useful for professional services firms), or a combination of both with a departmental structure plus project-specific sites. Each site should have clearly defined document libraries with logical folder structures and consistent naming conventions.

Step 2: Set Permissions Appropriately

SharePoint's permission model is powerful but can become complex if not managed carefully. Use Microsoft 365 groups to manage access at the site level, with more granular permissions applied only where genuinely needed. Avoid granting individual user permissions wherever possible — group-based access is far easier to manage as people join and leave the organisation.

Step 3: Train Your Team

The best SharePoint structure in the world is useless if your team does not understand how to use it. Provide clear guidance on where to save different types of files, how to use the search function to find documents, how to work with version history, and how to share files externally (with appropriate security controls). Short, focused training sessions are more effective than lengthy manuals that nobody reads.

Common Mistakes to Avoid

Over the years, we have seen UK businesses make the same SharePoint and OneDrive mistakes repeatedly. The most common include storing all business files in individual OneDrives, creating a single massive SharePoint site instead of a logical site structure, over-complicating permissions until nobody can access what they need, failing to migrate data from the old file server properly, not establishing naming conventions resulting in chaotic file organisation, and ignoring the external sharing settings which can lead to data leaks if SharePoint is configured to allow anonymous sharing by default.

Each of these mistakes is avoidable with proper planning and configuration. The key is to invest time upfront in designing your file management strategy rather than allowing it to evolve organically, which invariably leads to chaos.