Microsoft ended support for SharePoint Server 2016 and 2019 in July 2026. Companies that still use these versions now face a clear choice. They can move to a supported setup, or accept more risk from staying on old software. Microsoft’s lifecycle page confirms the end of extended support for SharePoint Server 2019.
That deadline doesn't prove that every company needs a consultant. Microsoft offers free migration tools, and many simple moves can be handled by an internal IT team. Outside help makes more sense when the project has complex permissions, custom workflows, large amounts of data, or a strict deadline.
The main test is simple. A consultant should reduce a real migration risk that the internal team can't manage well on its own.
Free Microsoft tools can handle many simple migrations
Microsoft provides the SharePoint Migration Tool for moves from several on-premises SharePoint versions to Microsoft 365. The tool can scan content, create migration tasks, track progress, and produce reports.
This gives companies a fair reason to question the need for outside help. A business with a clean SharePoint setup may be able to manage the move with its own staff. That is more likely when access rules are simple and the IT team already knows Microsoft 365.
Paying for SharePoint Migration Consulting should solve a clear problem. The value may come from deciding what should move, mapping access rights, handling unsupported features, planning migration waves, or testing the new setup.
If the job is mainly a clean transfer of files and sites, an internal team may already have what it needs.
A weak assessment can cause problems after migration
Many migration problems start before any files move. Teams can focus too much on the transfer itself and miss problems in the old SharePoint setup.
A migration may finish without errors and still leave major issues behind. Users may find duplicate files, missing metadata, old content, unclear ownership, or access rights that no longer match their jobs.
Microsoft advises teams to assess the source setup before migration. That work helps teams decide what should move and what may need to change first.
Good SharePoint Migration Best Practices start with a clear view of the current system. Teams should know which sites are active and how much content they hold. They should also review access rules, system links, custom features, and content that can be archived.
Calance also places assessment, testing, security checks, and post-migration review at the center of its guidance.
This matters because moving data is only one part of the job. The new setup must still work for the people who depend on it.
Permissions need their own migration test
Access rights can be one of the hardest parts of a SharePoint move. Files may reach the right place while the wrong people gain access to them.
The reverse can also happen. Staff may lose access to files they need for daily work. Both problems can affect normal work and may create security issues.
NIST’s cloud access control guidance treats access control as an important part of cloud security. It also explains how security duties can change when a company moves services to the cloud.
Outside help may be useful when the old SharePoint setup has inherited permissions, old user groups, external users, or many site-level exceptions.
Calance’s SharePoint consulting services cover areas such as infrastructure, integrations, security, governance, and migration planning. These areas can matter when access rules have grown over many years.
A consultant still shouldn't decide those rules alone. The company must know who should see each type of content. The migration plan should record those rules and test them before launch.
Large migrations can face speed limits
Migration speed isn't fully controlled by the project team. Microsoft can limit migration activity to protect Microsoft 365 services.
Microsoft advises teams to keep no more than 5,000 migration jobs or requests in the queue at one time. Its migration performance guidance also says teams should contact Microsoft support when they plan to move more than 100 TB within the next 30 days.
These limits matter when teams build a migration schedule. Adding more jobs doesn't always make the work finish faster. A large batch may instead create delays or make planning harder.
A pilot migration can give the team better data. It can expose slow libraries, problem file types, sign-in issues, or limits in the source system before the main move begins.
Teams can also Download The Ultimate Guide for SharePoint Migration for guidance on assessment, migration methods, testing, and work after the move.
The guide can help with planning, but real test results should shape the final schedule. Transfer speeds from the company’s own system are more useful than a general estimate.
Security checks should continue after files move
A SharePoint migration changes more than the location of files. It can also affect sharing rules, security settings, user access, and the way staff work with content.
CISA has published security guidance for Microsoft 365 services, including SharePoint Online and OneDrive. The agency tested its Microsoft 365 security baselines through 12 federal pilot projects. CISA also said the final baselines covered 7 Microsoft 365 services and included more than 100 changes from the draft.
CISA’s Microsoft 365 secure configuration baseline announcement supports a clear point. Moving the data and checking the security setup are separate jobs.
Teams should test access rights and sharing settings after migration. They should also check search, key workflows, and content counts. These tests should use rules agreed on before the move starts.
A consultant can help plan the tests. The company still needs its own staff to decide whether the new setup works as required.
Consulting makes sense when it cuts a known risk
Many businesses can move SharePoint without outside consulting. Microsoft provides free tools and detailed guidance. Internal teams may also know their own users and business rules better than an outside provider does at the start.
That is a strong reason to question the cost of consulting.
Outside help becomes easier to justify when the internal team faces risks it can't manage with enough confidence. Those risks may involve security, custom features, old permissions, large data volumes, or a fixed deadline.
A buyer should ask what the consultant will find before migration starts. The provider should explain how access rights will be checked and what the pilot must prove. It should also show how problems will be handled and how the final result will be tested.
Those answers should connect to real risks in the company’s SharePoint setup. Vague claims about experience aren't enough.
The case for consulting is strongest when the work cuts uncertainty that could affect security, business access, timing, or cost. If those risks are small and the internal team can handle them, paying for outside help may add little value.
Frequently asked questions
Is SharePoint migration consulting needed for every project?
No. Small migrations with standard SharePoint features and simple permissions may be handled by an experienced internal team. Microsoft provides tools that support this work. Outside help becomes more useful when the project has custom features, complex access rules, large data volumes, or a tight schedule.
What should teams check before a SharePoint migration?
Teams should first find out what content exists and who owns it. They should also check who can access the content and which systems depend on it. Old files, workflows, metadata, and custom features need review as well. This gives the migration plan a clear starting point.
How should a pilot migration be judged?
A pilot should test more than file transfer. Teams should check content counts, metadata, access rights, search, and key business tasks. They should also measure how long the transfer takes. If the pilot finds a serious problem, the main migration plan should change before the full move begins.
What is a major risk after SharePoint content is moved?
Access problems are a major risk. Users may gain access to files they shouldn't see, or they may lose access to files they need. Workflows and other business functions may also behave differently after the move. Post-migration testing should find these issues before the project is treated as complete.
How should a company choose a SharePoint migration consultant?
Start with the risks found during the assessment. Ask how the provider will test those risks and what proof it will give during the project. The provider should explain its method for permissions, pilot testing, migration timing, problem handling, and final checks. A good choice is a provider that fills clear gaps in the internal team’s skills or available time.
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