Legacy application retirement

    Legacy Application Retirement Without Losing Historical Data

    Stop paying to maintain legacy applications simply because users still need occasional access to historical information.

    Move enterprise data to modern cloud applications. Preserve historical access. Reconcile every record. Retire costly legacy systems.

    UK Public SectorSyntraETL data migration, archival and legacy application retirement services are available to UK public-sector buyers through the G-Cloud 15 framework.Explore G-Cloud 15 services →

    The commercial model

    Retirement is blocked by exactly one thing: access to history. Remove that dependency properly — with the records preserved, reconciled and searchable — and every other reason for keeping the application falls away.

    Legacy applicationStill licensed, hosted, patched and supported — often only because users need occasional access to history
    DataMoveExtract structured data, attachments, documents and audit history
    DataVaultPreserve the history securely, with retention and lineage
    DataLensSearch, report and export historical records under role-based access
    Legacy application retiredLicences, hosting, infrastructure and support withdrawn

    What retirement actually removes

    The saving is not one line item. It is the sum of everything an application consumes while it waits to be asked a question.

    Licence and support renewal

    Annual vendor licence, maintenance or extended support fees on a platform that is no longer the system of record.

    Hosting

    Data-centre or cloud hosting for application, database, integration and reporting tiers that exist only to serve look-ups.

    Infrastructure

    Compute, storage, database licensing, environments and the non-production copies that shadow them.

    DBA and application support

    Specialist skills retained for a platform nobody wants to work on, plus the knowledge risk when those people leave.

    Cyber-security exposure

    Unsupported or slowly-patched software holding historical finance, HR and payroll data is a live attack surface and a recurring audit finding.

    Backup and disaster recovery

    Backup capacity, DR capability and the testing overhead for a system that has already been replaced.

    What retirement must preserve

    The archive has to satisfy the same obligations the application did, or the retirement decision will not be signed off.

    Audit access

    Transaction-level records with their approval and change history, retrievable on request.

    Regulatory retention

    Records held for their full retention period and disposed of on schedule, with evidence.

    Historical reporting

    The reports users actually run, reproduced against archived data rather than against the retired system.

    Documents and attachments

    Scanned invoices, contracts and correspondence archived with the record they belong to.

    Record relationships

    An invoice with its supplier, purchase order, approvals and attachments — context, not isolated tables.

    Statutory response

    FOI and DSAR requests answered from the archive within statutory deadlines.

    How the decision gets signed off

    The blocker is almost never technical. It is that nobody will put their name to switching the system off. Reconciliation evidence is what converts a judgement call into a documented decision.

    Source-to-target reconciliationReconciled
    Source records identified14,829,321
    Records archived14,829,321
    Rejected / exception records0
    Reconciled100%

    Illustrative figures shown to explain how reconciliation evidence is presented. They are not drawn from a specific customer engagement.

    Commercial packages

    Legacy Exit work is delivered as fixed-scope packages rather than open-ended consultancy. Scope, data volumes and retention requirements are established in a Legacy Exit Discovery, and the implementation is then quoted against that scope. Projects typically start from £25K.

    Start here

    Legacy Exit Discovery

    A short, fixed-price engagement that produces the evidence a business case needs before any implementation is committed.

    • Application and data inventory
    • Data volumes and attachment volumes
    • Retention and access requirements
    • Target archive architecture
    • Implementation roadmap and estimate

    Single system

    Legacy Exit Essentials

    A single system of modest volume with limited attachments and a standard archive and access model.

    • One source application
    • Standard structured-data archive
    • Reconciliation evidence pack
    • DataLens historical access

    Complex estates

    Enterprise Legacy Exit

    Complex ERP or HCM estates where attachments, record relationships and controlled access carry as much weight as the row counts.

    • Multi-module ERP / HCM scope
    • Attachments and documents in scope
    • Relationship-aware archive model
    • SSO and role-based access control
    • Full source-to-target reconciliation

    Public sector

    Public Sector Legacy Exit

    Adds the information-governance support that NHS bodies, councils and universities need to evidence a retirement decision.

    • Retention schedule mapping
    • FOI and DSAR access design
    • Legal-hold handling
    • Evidenced disposal process
    • Available through G-Cloud 15

    Programme scale

    Enterprise Migration Factory

    For large multi-object ERP and HCM migration programmes running repeated cycles across many data objects and workstreams.

    • Multi-object, multi-cycle delivery
    • Mock, rehearsal and cutover runs
    • Programme-level reconciliation reporting
    • Runs alongside your SI

    Commercial model

    How the packages are bought

    Public-sector buyers can contract through G-Cloud 15. Commercial buyers contract directly.

    • Defined-scope engagement
    • Fixed-price work packages
    • Programme workstream
    • Outcome-based delivery
    • Time and materials where applicable
    G-Cloud 15 services →

    Indicative packaging only. Prices are confirmed against agreed scope following a Legacy Exit Discovery.

    Common questions

    Is archiving the same as backing up?
    No. A backup restores an application. An archive replaces the need for one: the records are extracted, preserved with their relationships and attachments, reconciled against source, and made searchable independently of the software that created them.
    What if we later need the legacy application back?
    You should not need it. The archive holds the records, the relationships, the attachments and the audit history, and DataLens provides the reporting and export. Decommissioning is run as a staged plan so access is proven before anything is withdrawn.
    Does retention law require us to keep the original system?
    Retention obligations apply to records, not to software. They require a record to remain available for its retention period and to be disposable on schedule — both of which an archive does, generally with better evidence than the legacy system.
    How long before we see a saving?
    The saving starts when the licence, hosting and support commitments are actually withdrawn, which is usually at the next renewal date after decommissioning. That renewal date is typically what sets the programme timeline.
    Can this run alongside our system integrator?
    Yes, and it usually does. SyntraETL runs the data workstream inside a programme led by your SI or your own programme team.

    Calculate Your Legacy Exit Opportunity

    Put your own licence, hosting, infrastructure and support numbers into the calculator to get an indicative annual and three-year saving, then request an assessment to turn it into a scoped business case.