Dropbox to OneDrive Migration: The Complete Guide

• Last updated: 25 September 2026
• Migration,OneDrive for Business
• Editorial Team

Microsoft retired Mover, the tool it used to run Dropbox-to-OneDrive migrations, back in 2024. If your mental model of “how do I migrate from Dropbox to OneDrive” still involves that tool, it’s out of date. The good news is what replaced it, Migration Manager, built into the SharePoint admin center, is free, more capable, and still the right starting point for most organizations. The catch is the same one that shows up in almost every migration: the native tool covers the basics well and leaves some real gaps for a third-party tool or a managed migration to fill.

This guide covers exactly what Migration Manager does and doesn’t do, how much OneDrive storage you actually need before you start (Microsoft changed the rules on this as recently as September 2026), and the full step-by-step process for getting a Dropbox migration done properly.

• Key takeaway: Migration Manager, built into the SharePoint admin center, is Microsoft’s current free tool for Dropbox migrations. It replaced the older Mover tool, which was retired for admin-led migrations in 2024.
• Key takeaway: The native tool migrates files, folders, and basic sharing, but not Dropbox Paper documents, detailed permission mapping, or version history.
• Key takeaway: Microsoft capped OneDrive storage at a hard 5 TB per user limit in September 2026, ending the older option to request up to 25 TB. Check your Dropbox data volume against this before planning a migration.
• Key takeaway: Most Microsoft 365 Business and Enterprise plans already include 1 TB of OneDrive storage per user at no extra cost, so the migration is primarily a project cost, not a new software purchase.

Why Migrate from Dropbox to OneDrive for Business?

Organizations migrate from Dropbox to OneDrive to consolidate file storage under their existing Microsoft 365 subscription, gain native integration with Word, Excel, Teams, and SharePoint, and bring file governance under the same compliance framework that already covers email and chat. For a company already paying for Microsoft 365, a separate Dropbox subscription is often a redundant cost once the migration is complete.

The practical case usually comes down to integration rather than storage capacity alone. Files in OneDrive for Business co-author natively inside Word, Excel, and PowerPoint, sync automatically with Teams channels, and fall under the same Microsoft Purview retention and eDiscovery policies as the rest of the organization’s Microsoft 365 environment. Dropbox handles file sync and sharing well, but it sits outside that compliance and collaboration fabric unless you build the integration yourself.

Dropbox vs. OneDrive: Where They Actually Differ

Capability	Dropbox	OneDrive for Business
Licensing	Separate paid subscription	Included in most Microsoft 365 plans
Office document co-authoring	Via desktop app or browser extension	Native real-time co-authoring in Office apps
Team collaboration structure	Shared folders and Dropbox Spaces	Integrated with SharePoint sites and Teams channels
Compliance and eDiscovery	Available on higher-tier plans	Unified with Microsoft Purview across the tenant
Default storage	Varies by plan	1 TB per user, expandable to 5 TB

Does Microsoft Have a Native Dropbox to OneDrive Migration Tool?

Yes. Microsoft’s current native tool is Migration Manager, built into the SharePoint admin center, and it fully replaced Mover, the older tool many admins remember, after Mover was retired for admin-led migrations in 2024. Migration Manager supports Dropbox, Google Drive, Box, and Egnyte as source platforms, migrating content directly into OneDrive, SharePoint, or Teams at no additional license cost.

This matters to know upfront because a fair amount of guidance still floating around online references Mover by name. If your IT team’s documentation or a consultant’s advice still mentions Mover, that information predates 2024 and needs to be updated before you plan around it.

How Does Migration Manager Work for Dropbox Migrations?

An administrator connects Migration Manager to Dropbox using admin credentials, the tool scans and assesses the accounts automatically, and the admin then reviews destination paths and runs the migration from inside the SharePoint admin center. The process is guided through a web interface rather than scripts.

• Connect to Dropbox. Sign in with a Dropbox administrator account to authorize Migration Manager’s connection to your Dropbox Business environment.
• Scan and assess. Dropbox accounts are scanned automatically. Once scanning completes, download the generated reports and logs to check for anything that might block the migration before it starts.
• Add accounts to your migration list. Once an account is confirmed ready, copy it into your active migrations list inside Migration Manager.
• Review and map destination paths. Migration Manager automatically maps source paths to matching destination paths in OneDrive or SharePoint. Review these mappings and adjust them for each source to make sure content lands where you actually want it.
• Run and monitor the migration. Start the migration and track progress through the admin center until every account is complete and verified.

What Are the Limitations of Migration Manager for Dropbox?

Migration Manager does not convert Dropbox Paper documents, does not automatically create SharePoint team sites from top-level Dropbox folders, and offers only basic permission mapping rather than a full translation of Dropbox sharing roles into OneDrive and SharePoint equivalents. None of these gaps are dealbreakers for a simple migration, but they matter for larger or more collaborative Dropbox environments.

• No automatic SharePoint site creation. If you want each top-level Dropbox folder to become its own SharePoint team site, Migration Manager does not do this for you. You need to create the destination sites yourself before mapping folders to them.
• Dropbox Paper is not converted. Dropbox’s native document format does not have a built-in conversion path to Word or OneNote through Migration Manager. Paper documents typically need to be manually exported and converted, or handled through a third-party tool that supports the conversion.
• Permission mapping is basic. Dropbox’s sharing roles don’t map one-to-one onto SharePoint and OneDrive permission levels. Migration Manager handles straightforward cases well but is not built for complex, nested sharing structures.
• No built-in delta sync for near-zero-downtime cutovers. Migration Manager runs a migration pass rather than continuously syncing changes, which matters if you need users to keep working in Dropbox until the moment of cutover.

Native Tool vs. Third-Party Migration Tools: Which Should You Use?

Use Migration Manager alone for a straightforward migration with simple sharing and no Dropbox Paper content. Add a third-party tool if you need full permission fidelity, Paper document conversion, version history, or a near-zero-downtime cutover for a large or business-critical environment.

Tools purpose-built for cloud storage migrations, including ShareGate and BitTitan, are commonly used to close these gaps, particularly for organizations running the Dropbox migration as one workload inside a larger Microsoft 365 migration project rather than a standalone file move.

How Much OneDrive Storage Do You Need Before Migrating?

Most Microsoft 365 Business and Enterprise plans include 1 TB of OneDrive storage per user by default, expandable by an admin up to a hard cap of 5 TB per user, a limit Microsoft began strictly enforcing in September 2026 after retiring the older option to request storage up to 25 TB. This is worth checking before you migrate, not after, since accounts that land over quota are put into a read-only state until usage drops back under the limit.

• Default: 1 TB per user. This is the out-of-the-box allocation for most qualifying Microsoft 365 plans.
• Expandable to 5 TB per user. Admins can raise individual or default quotas up to this hard ceiling through the SharePoint admin center.
• The old 25 TB request option is gone. Microsoft confirmed in September 2026 that the previous process allowing eligible E3 and E5 customers to request storage beyond 5 TB is no longer available.
• Pay-as-you-go storage is rolling out. Microsoft announced a metered OneDrive storage option at $0.20 per GB per month, in preview now with general availability expected by December 2026, for organizations that need to exceed standard allocations.
• Maximum file size is 250 GB. This was raised from the previous 100 GB limit and covers the largest individual files OneDrive will accept.

If your Dropbox environment holds more data per user than your current Microsoft 365 plan allocates, run this math before migration day, not during it. Organizations near the 5 TB ceiling should factor the new pay-as-you-go option into their cost planning rather than assuming unlimited headroom the way some plans offered a few years ago.

How Do You Prepare for a Dropbox to OneDrive Migration?

A well-prepared migration starts with a full inventory of what’s actually in Dropbox, a decision on how sharing permissions and Dropbox Paper content will be handled, and confirmation that OneDrive storage quotas can accommodate the incoming data, all completed before Migration Manager or any third-party tool touches a single file.

• Audit your Dropbox environment. Identify active versus stale content, total data volume per user, and any Dropbox Paper documents that will need special handling.
• Check OneDrive storage quotas. Compare your heaviest Dropbox users’ data volume against your current OneDrive allocation and adjust licensing or quotas ahead of time.
• Decide your permission mapping approach. Confirm whether Migration Manager’s basic mapping is sufficient or whether complex shared folder structures need a third-party tool.
• Plan for Dropbox Paper content. Decide whether Paper documents will be manually converted, migrated via a third-party tool, or archived and left behind.
• Build your destination structure. If you want folders to land as SharePoint sites rather than flat OneDrive folders, create those destination sites before you start mapping.
• Communicate the transition to end users. Tell people what’s changing and when, particularly around any features, like Dropbox Paper or specific sharing links, that won’t carry over automatically.

Step-by-Step: How to Migrate from Dropbox to OneDrive

A complete migration combines Migration Manager for the core file and folder transfer with a deliberate plan for permissions, Paper documents, and any large-scale or near-zero-downtime requirements a third-party tool handles better. Here’s a practical sequence:

• Set up your destination structure. Create any SharePoint sites you want folders to land in, and confirm OneDrive quotas are sized correctly for incoming users.
• Run Migration Manager for core content. Connect to Dropbox, scan and assess, map destination paths, and execute the migration for files and folders.
• Handle Dropbox Paper separately. Convert or archive Paper documents using a manual process or a third-party tool with Paper support, since Migration Manager does not handle this natively.
• Reconstruct complex sharing permissions. For shared folders with nested or granular permissions, verify Migration Manager’s basic mapping is sufficient, or apply a third-party tool for full-fidelity permission translation.
• Run a pilot group first. Migrate a representative sample of users and folder structures before rolling out organization-wide.
• Validate before decommissioning Dropbox. Confirm files, folder structures, and permissions are correct in OneDrive, and give users a defined window to retrieve anything overlooked.
• Set a firm Dropbox sunset date. A prolonged period where both platforms remain active fragments where files actually live and slows adoption.

What Happens to Dropbox Paper Documents and Shared Links?

Dropbox Paper documents are not converted by Migration Manager and need a separate plan, while external shared links generally need to be regenerated in OneDrive or SharePoint after migration, since Dropbox’s link structure doesn’t carry over automatically. This is one of the most commonly underestimated parts of a Dropbox migration.

For organizations with a small number of Paper documents, manual export and conversion to Word is often the fastest path. Organizations with a large volume of Paper content, or heavy reliance on externally shared links with collaborators outside the company, typically get better results from a third-party tool built to handle both, or from a managed migration partner who has done this conversion at scale before.

What Are the Common Challenges in a Dropbox to OneDrive Migration?

The most common challenges are underestimating OneDrive storage needs, losing Dropbox Paper content that nobody planned for, incomplete permission mapping on shared folders, and running both platforms too long after migration. Most of these are planning failures rather than technical ones.

• Storage quota surprises. Users who exceed their OneDrive allocation after migration are placed into a read-only state, a disruptive outcome that’s entirely avoidable by checking quotas beforehand.
• Lost Dropbox Paper content. Teams that used Paper heavily for collaborative notes and project docs often discover the content simply isn’t there post-migration if nobody planned for it specifically.
• Broken external sharing links. Links shared with clients or partners outside the organization typically need to be regenerated, not just migrated, which can disrupt external collaboration if not communicated in advance.
• Folder structure mismatches. Dropbox’s flat folder model doesn’t always map cleanly onto SharePoint’s site-based structure, and deciding this mapping in advance avoids confusion after go-live.
• Running both platforms too long. Extended dual-platform periods fragment where files actually live, undermining the consolidation the migration was meant to achieve.

How Long Does a Dropbox to OneDrive Migration Take?

A straightforward migration using Migration Manager typically takes a few days to two weeks for small and mid-size environments, while a full-fidelity migration including Paper conversion and complex permission mapping can take three to six weeks depending on data volume and complexity.

Environment Size	Migration Manager Only	Full-Fidelity Migration
Under 50 users	2 to 5 business days	1 to 2 weeks
50 to 250 users	1 to 2 weeks	2 to 4 weeks
250 to 1,000 users	2 to 3 weeks	4 to 6 weeks
1,000+ users	3 to 5 weeks	6 to 10 weeks or more

These ranges assume reasonably clean source data. Heavy Dropbox Paper use, large volumes of externally shared links, or a migration running alongside a broader Microsoft 365 migration should budget toward the higher end.

What Security and Compliance Steps Matter During Migration?

Migrated Dropbox content should fall under the same Microsoft Purview retention, eDiscovery, and Data Loss Prevention policies that already govern the rest of your Microsoft 365 environment, which means those policies need to be configured and confirmed before migration, not discovered as a gap afterward. This is easy to treat as an afterthought when the focus is on getting files moved, but it matters for any organization with real compliance obligations.

• Confirm retention policies extend to migrated content. Files landing in OneDrive and SharePoint through Migration Manager should inherit the same retention and eDiscovery coverage as natively created content, but this is worth explicitly verifying rather than assuming.
• Review external sharing defaults. Dropbox and SharePoint handle external sharing permissions differently by default. Audit your tenant’s external sharing settings before migration so links that were appropriately restricted in Dropbox don’t become more permissive by accident in OneDrive.
• Apply sensitivity labels where needed. Organizations using Microsoft Purview sensitivity labels should plan to apply them to migrated content, since Dropbox’s own classification tags, if used, do not translate automatically.
• Preserve records for regulated data. Organizations in finance, healthcare, or legal services with formal documentation requirements should keep a record of the migration process itself, source, transformation, and destination, as part of their compliance trail.

How Do You Drive OneDrive Adoption After Migration?

Adoption improves fastest when employees get a short, practical walkthrough of where their Dropbox habits map onto OneDrive and SharePoint, and when a clear policy exists for where new files should be saved going forward, rather than leaving that decision to individual habit. Moving the data is the easy part; getting people to actually stop using Dropbox is usually the harder half of the project.

• Publish a simple “where does this go now” guide. A short reference mapping common Dropbox actions, sharing a file externally, finding a shared folder, syncing to desktop, to their OneDrive or SharePoint equivalent reduces the friction that sends people back to old habits.
• Clarify OneDrive vs. SharePoint. Users often aren’t sure whether a file belongs in their personal OneDrive or a shared SharePoint library. A simple rule, personal and in-progress work in OneDrive, anything team-owned in SharePoint, prevents a lot of post-migration confusion.
• Set and enforce a Dropbox sunset date. Ambiguity about exactly when Dropbox access ends is one of the most common reasons these migrations drag on far longer than planned.
• Monitor usage after cutover. Check OneDrive and SharePoint usage reports in the admin center in the weeks following migration to confirm adoption is actually happening, not just that the data moved.

How Does Apps4Rent Help with Dropbox to OneDrive Migration?

Apps4Rent plans and executes the full migration, combining Microsoft’s native Migration Manager for core content with the right third-party solution for Dropbox Paper conversion, complex permissions, and large-scale cutovers, so the migration is complete rather than partial.

• Environment assessment. A review of your Dropbox data volume, sharing structure, and Paper content to determine what actually needs special handling.
• Storage and licensing planning. Confirming OneDrive quotas are sized correctly, including guidance on the new pay-as-you-go option where it makes sense.
• Tool selection and execution. Running Migration Manager for core content and a third-party tool where full fidelity is required.
• Validation. Confirming files, folders, and permissions are correct in OneDrive and SharePoint before Dropbox is decommissioned.
• 24/7 support. A single point of contact for the full project.

FAQs About Dropbox to OneDrive Migration

1. Does Microsoft have a free tool to migrate from Dropbox to OneDrive?

   Yes. Migration Manager, built into the SharePoint admin center, migrates Dropbox files and folders into OneDrive or SharePoint at no additional license cost. It replaced Microsoft’s older Mover tool, which was retired for admin-led migrations in 2024.

2. Can Migration Manager convert Dropbox Paper documents?

   No. Dropbox Paper documents are not converted by Migration Manager. They typically need to be manually exported and converted to Word, or migrated using a third-party tool that supports Paper conversion.

3. How much OneDrive storage do I get per user?

   Most Microsoft 365 Business and Enterprise plans include 1 TB of OneDrive storage per user by default. Admins can expand this up to a hard cap of 5 TB per user, following Microsoft’s September 2026 policy change that ended the older option to request storage beyond that limit.

4. What happens if a user’s OneDrive account exceeds its storage quota?

   The account is placed into a read-only state until usage is reduced below the quota or the user’s storage allocation is increased. Checking storage needs before migration avoids this disruption.

5. Do I need a third-party tool to migrate from Dropbox to OneDrive?

   Not necessarily. If your migration only needs core files, folders, and basic sharing, Migration Manager handles that at no extra cost. A third-party tool becomes worthwhile if you need Dropbox Paper conversion, full permission fidelity, version history, or a near-zero-downtime cutover.

6. Does Migration Manager preserve Dropbox sharing permissions?

   Migration Manager handles basic sharing permissions but does not fully translate Dropbox’s granular sharing roles into equivalent OneDrive and SharePoint permission levels. Complex, nested sharing structures typically need a third-party tool for accurate mapping.

7. Is Microsoft’s pay-as-you-go OneDrive storage available now?

   It is in preview as of late 2026, with general availability expected by December 2026. It offers metered storage at $0.20 per GB per month for organizations that need to exceed the standard 5 TB per user allocation.

8. How long does a Dropbox to OneDrive migration take?

   A straightforward migration using Migration Manager typically takes a few days to two weeks depending on environment size. A full-fidelity migration including Paper conversion and complex permission mapping can take three to ten weeks for larger or more complex environments.

9. Can Apps4Rent help with Dropbox migrations that include Paper documents and complex permissions?

   Yes. Apps4Rent combines Microsoft’s Migration Manager for core content with the appropriate third-party tool for Paper conversion, full permission mapping, and large-scale migrations, managing the complete project as a single engagement.

10. Will external collaborators lose access to shared files after migration?

    Dropbox external sharing links generally do not carry over automatically to OneDrive or SharePoint. New sharing links typically need to be generated and sent to external collaborators as part of the migration, and this should be planned and communicated in advance.

11. Does file version history transfer from Dropbox to OneDrive?

    Migration Manager does not preserve Dropbox’s file version history. Only the current version of each file migrates. Organizations that need historical file versions preserved should use a third-party migration tool with version history support before decommissioning Dropbox.