Skip to main content
Horton Scientific

Post-support migration campaign

SharePoint 2016/2019 End-of-Support Migration

SharePoint Server 2016 and 2019 are now outside their support window. We help teams inventory farms, reduce immediate risk, identify modernization blockers, and move content, workflows, and collaboration patterns into SharePoint Online and Microsoft 365.

Why this matters

Surface the risks before migration work begins

Migration risk often sits in ownership, permissions, identity, workflows, integrations, and business validation. We bring those issues into the plan before they become cutover problems.

Know what must move

Separate active business content from stale sites, abandoned libraries, unsupported customizations, and archives.

Reduce cutover risk

Map authentication, custom code, InfoPath, Nintex, SharePoint Designer workflows, reports, and line-of-business integrations.

Land in a cleaner model

Use the migration to simplify information architecture, permissions, ownership, sharing, retention, and Teams-connected collaboration.

Representative situations

A fit for environments with real dependencies

The work is most valuable when the move includes technical complexity, business-critical processes, or governance decisions that cannot be left until the end.
  • Microsoft 365
  • SharePoint Online
  • Teams
  • OneDrive
  • Exchange Online
  • Power Platform
  • Azure
  • Entra ID

Where we are typically brought in

Complexity that requires senior migration judgment

  • Tenant, SharePoint, Teams, OneDrive, Exchange, and Power Platform moves with real business validation requirements.
  • Migration programs where permissions, ownership, workflows, forms, integrations, or compliance constraints create risk.
  • Organizations that need senior Microsoft migration judgment, not only tool operation.

Before and after

Move from uncertain scope to a controlled plan

The goal is not simply to move data. It is to create a target state, sequence the work, and leave the environment easier to operate.

What creates drag

  • Unclear scope, unknown owners, hidden dependencies, and migration waves based on incomplete inventory.
  • Technical migration success measured mostly by item counts, while business validation is left until late.
  • Legacy patterns copied into Microsoft 365 without improving governance, support, or ownership.

What good looks like

  • An inventory-backed plan with owners, dependencies, target architecture, validation gates, and remediation priorities.
  • Migration waves aligned to business processes, support readiness, communications, and go/no-go decisions.
  • A cleaner Microsoft operating model with governance, documentation, and post-migration support paths.

Business case

Give leadership a decision-ready migration path

The technical plan should also support budget, procurement, operating continuity, and stakeholder communication.
  • Reduce unsupported platform and operational continuity risk.
  • Protect business processes during cutover and modernization.
  • Create a defensible migration roadmap for leadership, budget, and procurement conversations.
  • Improve Microsoft 365 adoption by landing users in a cleaner, governed target state.

Delivery approach

A practical path from discovery through handoff

Each engagement is adapted to the source systems, target environment, timeline, risk tolerance, and capacity of the internal team.
01

Inventory and risk scan

Collect site, library, storage, permission, workflow, form, customization, and usage signals.

02

Target design

Define SharePoint Online architecture, hub structure, Teams mapping, labels, sharing controls, and owners.

03

Remediation sprint

Fix orphaned owners, broken inheritance, unsupported templates, workflows, metadata, and oversharing.

04

Pilot and cutover

Run pilot migrations, validate outcomes, refine mappings, and execute production waves.

Deliverables

Artifacts your team can use after the engagement

The output is structured for administrators, project managers, business owners, and leadership.
  • Farm and site inventory
  • Risk register
  • Source-to-target mapping workbook
  • Migration wave plan
  • Cutover runbook
  • Validation checklist and hypercare backlog

Questions

Frequently asked questions

Is this only for SharePoint Server 2019?

No. We can assess and plan migrations from SharePoint Server 2013, 2016, 2019, Subscription Edition, and hybrid environments.

Can you handle legacy forms and workflows?

Yes. We identify InfoPath, Nintex, SharePoint Designer, custom scripts, timer jobs, and integration dependencies, then recommend retire, rebuild, replace, or migrate paths.

Do we need to migrate everything?

Usually no. A strong plan distinguishes content to migrate, archive, remediate, modernize, or retire.

Let’s move your business forward

What can we help
you do next?