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Legacy migration & decommissioning

Retire ageing business systems without losing the data, integrations or knowledge around them.

Turning off an old system is often harder than buying the replacement. Legacy ERP and business applications may feed reports, interfaces, archives and operational processes that are invisible until something breaks. Solidity Technology maps those dependencies and builds a controlled path to migration and retirement.

Retire ageing business systems without losing the data, integrations or knowledge around them. illustration07
Where this service helps

When the technical answer is not obvious.

We identify hidden dependencies, retention obligations, integrations and fallback requirements before cutover, then plan a staged transition that preserves access to critical business information.

  • SAP or ERP components are costly to maintain but cannot simply be switched off
  • Historical data must remain available after the application is retired
  • Interfaces and scheduled jobs have unclear ownership
  • Replacement systems are being selected before current dependencies are understood
  • Support contracts are expiring while migration is still incomplete
  • Management needs a staged decommissioning plan with clear business risk
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What you receive

Evidence, documentation and a practical path forward.

The engagement is scoped around a defined business problem. Work is documented so the client retains the findings and can act on them internally or with existing technology suppliers.

  • Current-state application and integration map
  • Data retention, archive and access requirements
  • Dependency and interface register
  • Replacement and migration readiness assessment
  • Decommissioning sequence, controls and rollback considerations
  • Executive roadmap covering risks, priorities and decision points
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How the engagement works

A controlled investigation, not guesswork.

We begin with the business impact, work through the relevant technical layers and finish with documented findings and clear next actions.

1. Discover the estate

Identify systems, modules, databases, interfaces, reports, vendors and business owners.

2. Protect what must survive

Define historical data, compliance, reporting and operational access requirements.

3. Plan the transition

Sequence migration, coexistence, cutover and decommissioning activities around business risk.

4. Retire deliberately

Confirm dependencies are removed, data is accessible and ownership is transferred before infrastructure or licences are cancelled.

Frequently asked questions

Questions about this specialist service.

Do you perform full SAP implementations?

Solidity focuses on discovery, transition planning, dependency mapping, governance and decommissioning rather than positioning itself as a full SAP implementation partner.

Can legacy data remain searchable after decommissioning?

Usually yes, but the archive method should be designed around business, reporting, legal and retention requirements before the old system is retired.

Can this service support a move to Microsoft platforms?

Yes. The replacement may involve Microsoft 365, Power Platform, Dynamics 365 or another suitable solution depending on the business requirement.

Related capabilities

Specialist services that often work together.

ERP & Business Systems Advisory

Explore this related Solidity Technology specialist capability.

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Legacy System Discovery

Explore this related Solidity Technology specialist capability.

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Technical Documentation

Explore this related Solidity Technology specialist capability.

View service →
Have a system nobody fully understands, data that does not reconcile or a technical problem that keeps returning?Let's open a discussion on how we can help your team or business.
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