ShareGate versus SharePoint Migration Manager

If you have ever been handed the key to a massive content migration project—moving terabytes of files, lists, and permissions from old file shares or ancient SharePoint servers into Microsoft 365—you know the initial feeling of dread. It usually starts with an innocent-sounding request from management: "Hey, can we move all our data to SharePoint next month?"

Once you realize that simply dragging and dropping thousands of folders in File Explorer will crash your desktop and destroy everyone's metadata, you start looking for actual migration tools. Pretty quickly, your search narrows down to two big contenders: Microsoft’s built-in SharePoint Migration Manager and third-party staple ShareGate.

On paper, both claim to do the exact same thing: take data from point A and put it in point B. But after actually putting both tools through their paces on real production workloads, the experience of using them could not be more different. Here is our honest, hands-on breakdown of how they compare, where each tool shines, where they fall flat, and whether ShareGate is actually worth thousands of dollars out of your IT budget.

SharePoint Migration Manager (SMM) is Microsoft’s native tool for moving content into SharePoint Online, OneDrive, and Teams. It lives right inside the SharePoint Admin Center in M365, meaning if you are an admin, it is already sitting there waiting for you.

Here are the key highlights of what SMM brings to the table:

• Native Tenant Integration: Because it is part of the Microsoft 365 admin suite, there is zero software to buy or license separately. It hooks directly into your target tenant without needing complex API keys or third-party authentication setups.
  
  

• Centralized Cloud Management: You manage jobs directly from your browser. You set up sources, assign destinations, check job progress, and read logs from the admin dashboard.
  
  

• Agent-Based Architecture: SMM relies on lightweight software agents installed on local servers or virtual machines. These agents pull data from local file shares or network drives and push it up into Microsoft's migration pipeline. You can scale out by adding multiple agents across different machines.
  
  

• Bulk Migration Scans via CSV: You can bulk-upload migration tasks using CSV files. This allows you to map hundreds of local file paths or network shares to specific SharePoint site collections and document libraries in one go.
  
  

• Built-in Scanning & Reporting: Before moving anything, SMM can scan your source environment to identify potential issues—like file path lengths exceeding limits, illegal characters, or unsupported file types.
  
  

• Global Throttling Optimizations: Being a native Microsoft product, SMM hooks into Microsoft’s backend migration APIs, which helps bypass some of the standard client-side API throttling rules that plague external migration scripts.

Key Features of SharePoint Migration Manager

ShareGate (specifically ShareGate Migrate) is a third-party desktop application built by Workleap. It has been the go-to standard for SharePoint administrators for over a decade. Unlike SMM, ShareGate runs as a standalone client application that you install on your workstation or migration VM.

Here are the defining features that make ShareGate stand out:

• All-in-One Standalone Application: ShareGate runs entirely local to the machine it is installed on. You launch the app, log into your source and target environments, and start working immediately through a clean graphical user interface.
  
  

• Comprehensive Source & Target Support: Beyond simple file share to SharePoint moves, ShareGate handles SharePoint-to-SharePoint migrations (on-premise to online, or tenant-to-tenant), Teams-to-Teams moves, and OneDrive transfers.
  
  

• Granular Structural Migration: ShareGate does not just copy files; it moves site structures, subsites, list schemas, custom content types, views, web parts, and workflow definitions.
  
  

• Granular Item-Level Copying: You can copy single files, specific list items, whole libraries, or entire site collections with full control over version history, original metadata (Created By, Modified Date), and user mapping.
  
  

• Pre-Migration Assessment Tools: It includes detailed reporting utilities that audit your source sites for potential migration hurdles, unmapped users, custom code, and huge site sizes before you run a job.
  
  

• Post-Migration Governance & Management: A ShareGate subscription also includes administrative features for M365 governance, such as monitoring inactive Teams, orphaned sites, and external sharing permissions.

Key Features of ShareGate

When you sit down to compare the features side-by-side, the fundamental difference comes down to architectural philosophy and user interface design.

ShareGate is, without a doubt, much more user-friendly in its aesthetics. Because it operates as a separate desktop application, it feels like a modern, dedicated power tool. The UI is clean, visual, and intuitive. Navigating between source and destination is as simple as selecting a source site on the left pane and a target site on the right pane. You can visually select specific libraries, drag and drop folders, and customize property mappings right on the screen. It feels responsive, direct, and under your personal control.

On the flip side, SharePoint Migration Manager feels very much like a corporate admin portal feature. The interface is standard Microsoft admin style—functional, but definitely not fast or slick. More importantly, getting SMM to run requires setting up an agent bot internally. You have to provision a server, download the agent setup file, install it on an internal server, register the agent with your M365 tenant, and ensure service accounts have proper domain access. Setting up this agent bot feels clunky and administrative compared to simply double-clicking ShareGate.exe. If your internal VM dies or loses network connectivity, the SMM portal simply marks the agent as "offline," and you have to log into that machine to troubleshoot it.

Real-World Setup Takeaway: ShareGate takes 5 minutes to set up: download, enter license key, sign in with M365 credentials. SMM requires provisioning a VM, downloading agents, configuring agent service credentials, registering agents in the cloud admin portal, and managing agent status.

Tool Features Review

Executing a migration is where the rubber meets the road. Both tools get files into the cloud, but the execution workflow, precision, and error handling are night and day.

When executing a migration job in ShareGate, you get incredible item-level visibility. You can see real-time progress bars showing exactly which file is currently uploading, transfer speeds in MB/s, and immediate pass/fail statuses. If a file fails due to an illegal character or a broken path, ShareGate flags it instantly in the live log. You can inspect the error on the spot, fix the issue in the source, and click "Copy again" for just the failed items. The migration results are consistently clean, accurate, and predictable.

However, ShareGate has an execution quirk that catches many admins off guard: jobs must be executed manually first before they can be scheduled or rerun. You cannot simply define a hypothetical migration job in a queue and set it to run automatically at 2:00 AM on Saturday if you haven't run that job manually at least once. Once you run a job manually, ShareGate saves the configuration, and you can then automate or schedule subsequent delta runs. But that initial manual execution step is mandatory, which means you have to sit there, initiate the run, and verify it starts properly.

SharePoint Migration Manager handles job execution through a centralized queue system. You define tasks (either manually in the web UI or via bulk CSV upload) and queue them up. SMM then distributes these tasks automatically across whatever migration agent bots you have running on your network. The upside is that you can build huge migration schedules days in advance without touching the machine at run time. The downside is that monitoring live execution feels detached. You don't get the satisfying real-time view that ShareGate gives you; instead, you refresh a cloud web page and wait for status updates to sync back from the local agent.

Migration Execution Review

Migration tools often get judged not just on raw copy speed, but on the extra "nice-to-have" features that make an admin's life easier.

ShareGate goes way beyond simple data moving. It includes a massive suite of extra features:

• Tenant-to-Tenant & Teams Migrations: ShareGate can move full Microsoft Teams channels, conversations, tabs, and associated SharePoint backing sites directly between different M365 tenants—a feature crucial for company mergers and acquisitions.
  
  

• Permission & Structure Management: You can copy custom permission levels, site columns, list content types, workflows, and subsite hierarchies without having to rebuild them manually in the target.
  
  

• User Mapping & Metadata Rules: Extensive rules allow you to map old Active Directory accounts to new Entra ID (Azure AD) user profiles, ensuring historical file ownership remains intact.
  
  

• M365 Governance Reporting: Out of the box, ShareGate provides built-in reporting tools to scan for unused sites, manage orphan owners, audit external share links, and review tenant security settings.
  
  

SharePoint Migration Manager, by design, is a focused utility. It does not try to be a governance suite. It does not handle complex tenant-to-tenant Teams migrations or site structure cloning. It focuses strictly on moving unstructured file data—from local file shares, network drives, Dropbox, Google Drive, or old SharePoint Server on-premises sites—into M365. Its extra features are limited to basic user mapping files, mapping network paths, and generating pre-migration audit logs. It is a straight-line pipe: take data here, put data there.

Extra Features Review

When you have 20 Terabytes of company data sitting on an aging SAN, speed and scalability are all that matter. How do the two compare when pushed to the limit?

ShareGate is extremely fast for small-to-medium datasets, but its performance is heavily bound to the machine running the app and standard client-side API throttling. Because ShareGate executes on your local workstation or a dedicated VM, its memory, CPU, and network card dictate performance. If you run multiple heavy ShareGate copy instances on a single VM, you will hit resource bottlenecks. Furthermore, because ShareGate communicates via web APIs, Microsoft's tenant throttling policies will occasionally step in and slow down transfers during peak hours to protect cloud performance.

SharePoint Migration Manager handles large-scale, massive multi-terabyte data lifts slightly better from an architectural standpoint. Because it uses an agent-bot model, you can scale out horizontally. Need more bandwidth and processing power? Simply spin up three or four lightweight Windows VMs on your network, install the SMM agent bot on each of them, and register them to your tenant. SMM will automatically load-balance migration tasks across all active agent bots.

However, despite this theoretical multi-agent scalability, in actual practice, SMM often feels slower per job compared to ShareGate. The overhead of the cloud queue, agent polling, and task coordination introduces latency. So while SMM scales out well across dozens of separate file shares, individual job throughput can feel sluggish compared to ShareGate’s direct, aggressive migration engine.

Scalability and Speed

Scheduling is a critical factor for enterprise migrations because you almost always want to run high-bandwidth data transfers outside of core business hours to avoid impacting user network traffic.

Here is where the two tools take completely opposite approaches:

SharePoint Migration Manager excels at unattended background scheduling. You can configure migration tasks in the admin portal days or weeks ahead of time and set them to execute automatically at specific hours (e.g., every weeknight at 8:00 PM). Because SMM relies on cloud-managed agent bots running on servers, it can start, pause, resume, and finish jobs completely out of hours without any human intervention. You don't need an admin logged into a desktop session; as long as the server running the agent bot is powered on, SMM executes the job on schedule reliably.

ShareGate is much more restrictive when it comes to scheduling. As mentioned earlier, ShareGate requires you to manually set up and run a migration job first before you can schedule it for future automated runs. You use ShareGate’s command-line interface (PowerShell module) or built-in scheduler to automate delta syncs, but that initial execution must happen manually. Furthermore, because ShareGate is a desktop app, the host machine must remain logged in with active credentials and the application/script running for scheduled tasks to fire properly. It does not have a native server-side background service mode like SMM’s agent bot.

Scheduling Summary: SMM allows true "set-it-and-forget-it" scheduling out of hours with zero manual touchpoints. ShareGate allows scheduled delta runs, but only after you have manually configured and executed the migration job at least once.

Scheduling Options

Now we get to the bottom line—and for many IT directors, this is where the decision is ultimately made.

SharePoint Migration Manager is essentially "free." It is included directly as part of standard Microsoft 365 enterprise licensing (E3, E5, Business Premium, etc.). If your organization is already paying for M365 user licenses, you already own SMM. There are no additional per-gigabyte transfer fees, no agent costs, and no user seat limits for admins running migrations. For tight IT budgets, this zero-dollar incremental cost is a massive selling point.

ShareGate is a commercial third-party product that must be purchased separately. ShareGate does not offer a perpetual license; it operates strictly on an annual subscription model. A standard tier subscription starts at around $5,000 to $6,000 per user/year depending on features and terms. For mid-sized to enterprise teams requiring multiple admin seats, costs multiply quickly—in our case, we paid approximately $14,000 for 3 seats/licenses.

While $14,000 is definitely not pocket change for an IT department, you have to weigh that capital outlay against the labor hours saved by your engineering team. The choice comes down to paying with budget dollars versus paying with engineering setup time and potential migration headaches.

Licenses and Costing

So, after hundreds of gigabytes moved and plenty of migration logs reviewed, which tool actually comes out on top?

The truth is, both tools serve distinct needs, and the right choice depends heavily on your budget, team bandwidth, and structural complexity.

Use SharePoint Migration Manager if:

• You have zero budget for third-party software tools and need to leverage what is already included in your M365 E3/E5 enterprise licenses.

• Your migration scope is strictly focused on straightforward file shares, network drives, or basic Google Drive to OneDrive/SharePoint transfers.

• You require completely unattended, scheduled background runs out of business hours without needing engineers logged into desktop sessions.

• You have the infrastructure setup capacity to deploy and manage internal agent bot VMs on your network.
  
  

Use ShareGate if:

• You are doing complex migrations—such as tenant-to-tenant moves, Microsoft Teams migrations, or restructuring legacy on-premise SharePoint site hierarchies.

• You value superior migration results, granular error reporting, immediate failure retries, and high-fidelity metadata mapping.

• You want a clean, visually user-friendly separate application that does not require setting up and maintaining clunky internal background agents.

• Your organization can justify the commercial license cost ($14k for 3 licenses) to save dozens of hours in manual troubleshooting and operational friction.

Final Verdict

In our experience, while Microsoft's built-in SharePoint Migration Manager gets the job done for basic bulk file lifts and wins points for out-of-hours scheduling, ShareGate is simply the superior migration tool. Its polished aesthetics, direct controls, and immaculate migration results make it worth every penny of the commercial price tag for serious IT environments. If you can squeeze the budget, buy ShareGate. If money is tight, SMM will get you across the finish line—just be prepared to put in extra labor managing those agent bots!

Our Team's Recommendation

Contact: info@m365-simplified.com