Migration & Modernization

What migration & modernization has to get right

  • Migration readiness and transition path assessment
  • SAP S/4HANA system conversion
  • Selective data transition and data migration
  • Custom code, clean core, and extension modernization
  • Integration, data, reporting, and landscape modernization
  • Cutover, validation, and post-migration stabilization

SAP Migration Services for Modernization

VISCAP plans and runs SAP migrations end to end, treating each as a business decision that happens to move a system. We assess what carries forward and what the business can absorb, then recommend the route the landscape supports: new implementation, system conversion, or selective data transition — staying engaged until production is stable.

What VISCAP Delivers Through SAP Migration and Modernization Services

01

Migration readiness and transition path assessment

We establish what is genuinely being moved — release baseline, processes, data, code and interfaces — then work SAP Readiness Check findings and simplification items into a transition-path recommendation, reasoning attached.

  • Current SAP landscape review
  • SAP release and system baseline
  • Business process assessment
  • SAP readiness check findings
  • Simplification-item review
  • Add-on compatibility
  • Data-volume assessment
  • Custom code analysis
  • Integration dependencies
  • Reporting dependencies
  • Business continuity considerations
  • Transition-path recommendation
02

SAP S/4HANA system conversion

A conversion keeps the configuration and history you've built, once simplification items are remediated, custom code adapted and data volume reduced. Then the technical conversion and data model change are coordinated, tested and validated.

  • SAP ECC system conversion
  • Functional preparation
  • Simplification-item remediation
  • Custom code preparation
  • Add-on and interface assessment
  • Data-volume reduction
  • Technical conversion coordination
  • Data model conversion
  • Testing and reconciliation
  • Cutover planning
  • Post-conversion validation
03

Selective data transition and data migration

Where neither a full conversion nor a clean rebuild fits, selective transition moves only what earns its place: chosen entities, time slices, master data and open items, with history a decision, not a default. Restructuring and harmonization happen here, each cycle reconciled before the next.

  • Selective migration scope
  • Company-code or business-unit selection
  • Time-slice selection
  • Master data migration
  • Open transactional data
  • Historical data requirements
  • Data transformation
  • Organizational restructuring
  • Data harmonization
  • Migration objects
  • Mock migration cycles
  • Validation and reconciliation
  • Archiving and retention considerations
04

Custom code, clean core, and extension modernization

Most SAP estates carry far more custom code than anyone still runs. We inventory it against actual usage, retire what nothing calls, remediate what S/4HANA requires, and move what remains to extensibility options on SAP BTP — so the next upgrade is a task, not a programme.

  • Custom development inventory
  • Usage-based custom code analysis
  • Unused code retirement
  • SAP S/4HANA compatibility checks
  • Code remediation
  • In-app extensibility
  • Developer extensibility
  • Side-by-side extensions on SAP BTP
  • Released APIs and events
  • Technical debt reduction
  • Clean core governance
  • Upgrade readiness
05

Integration, data, reporting, and landscape modernization

A migration is the one moment interfaces nobody wants to touch are open. Every SAP and non-SAP connection is inventoried and rationalized, middleware shifts toward API-led integration on SAP Integration Suite, reporting and Fiori are rebuilt, and legacy applications that no longer earn their place are consolidated, archived or retired.

  • SAP and non-SAP integration inventory
  • Interface rationalization
  • SAP integration suite considerations
  • API-led integration
  • Middleware transition
  • Data-flow modernization
  • Reporting inventory
  • SAP fiori and user-experience considerations
  • Analytics modernization
  • System consolidation
  • Legacy application retirement
  • Archive and retention planning
  • Target landscape design
06

Cutover, validation, and post-migration stabilization

Cutover is rehearsed before it runs. Downtime is planned against the business calendar, and the final cycle follows an already-proven script. Results are then reconciled, processes and security roles validated, and hypercare held until the defect curve flattens and support takes over.

  • Cutover strategy
  • Cutover rehearsals
  • Final migration cycle
  • Downtime planning
  • Business continuity
  • Data reconciliation
  • Business data validation
  • Functional validation
  • Integration validation
  • Security and role validation
  • Production deployment
  • Hypercare
  • Defect resolution
  • Performance monitoring
  • Support handover
  • Legacy-system retirement planning
All SAP solutions

SAP Solutions Connected to Migration and Modernization

SAP S/4HANA

Migration and modernization across finance, procurement, supply chain, manufacturing, sales, projects, asset processes and reporting — the digital core every other move is timed against.

Brownfield conversionSelective transitionClean coreSAP Fiori

SAP Cloud ERP Private

An SAP ERP landscape modernized in a cloud environment via system conversion or selective transformation — depth and control kept, infrastructure handed over.

System conversionSelective transformationPrivate cloud

SAP Cloud ERP

A fit-to-standard cloud path for organizations leaving legacy or non-SAP environments, where standardized processes are the point, not a compromise.

Fit-to-standardPublic cloudGROW with SAP

RISE with SAP

The transition route for existing SAP ERP customers moving toward SAP Cloud ERP Private, with commercial, contractual and technical questions settled before anything is signed.

Transition pathCloud ERP PrivateCommercial evaluation

SAP Business Technology Platform

Where extensions come off the core: integration, side-by-side development, automation, data and innovation services built against the landscape you're moving to, not the one you're leaving.

Side-by-side extensionsAutomationData & innovationClean core

SAP Integration Suite

Enterprise integrations, APIs, cloud connectivity and SAP-to-non-SAP data flows rebuilt for the target landscape, not quietly re-pointed at it to age another decade.

Cloud integrationAPI managementSAP & non-SAP flows

A Controlled Path From Migration Readiness to a Modern SAP Landscape

01

Assess

We review objectives, systems, processes, data and dependencies, then set the criteria the decision will rest on.

  • Review business and transformation objectives
  • Assess SAP and non-SAP systems
  • Review processes, data, custom code, integrations, and reports
  • Analyze system constraints and dependencies
  • Identify business continuity risks
  • Review readiness findings
  • Establish decision criteria
02

Define

We compare the migration paths and set deployment direction, retained processes, data-history requirements and target architecture.

  • Compare new implementation, system conversion, and selective data transition
  • Define deployment direction
  • Confirm retained and redesigned processes
  • Define data-history requirements
  • Establish clean core and extensibility principles
  • Define target integrations and reporting
  • Confirm target architecture
03

Prepare

Findings are remediated, data cleansed and reduced, custom code adapted, and testing, reconciliation and cutover governance established.

  • Remediate critical readiness findings
  • Cleanse and map data
  • Reduce unnecessary data volume
  • Review and adapt custom code
  • Prepare interfaces
  • Define migration objects
  • Complete mock migration planning
  • Establish testing and reconciliation criteria
  • Prepare cutover governance
04

Transition

Migration or conversion cycles run, data and processes validated, results reconciled, cutover executed, and users moved into the target environment.

  • Execute agreed migration or conversion activities
  • Run migration cycles
  • Validate migrated data
  • Test processes and integrations
  • Reconcile financial and operational results
  • Execute cutover
  • Confirm production readiness
  • Transition business users into the target environment
05

Stabilize

Hypercare and defect resolution run through final reconciliation and handover to AMS or support, with legacy systems retired and an enhancement roadmap set.

  • Provide hypercare
  • Resolve migration-related defects
  • Monitor business processes
  • Complete reconciliation
  • Transition into AMS or support
  • Retire or archive legacy applications
  • Prioritize remaining modernization work
  • Establish an enhancement and clean core roadmap

Industries

Manufacturing

Finance, procurement, production, inventory, quality, plant integrations and maintenance moved together

View industry

Consumer Products and FMCG

High-volume sales, distribution, supply chain, finance and external integrations modernized as one

View industry

Pharmaceuticals and Life Sciences

Controlled migration of regulated processes, batch history, traceability, access control and retained data

View industry

Chemicals

Process manufacturing, materials, quality, plant operations and environmental and compliance data

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Professional Services

Projects, resource data, finance, billing, workforce systems and payroll carried across cleanly

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Engineering, Construction and Projects

Projects, work breakdown structures, procurement, subcontractors and long-cycle historical data

View industry
Case study

Standardizing HR across 22 engineering & construction sites

1,900+ employees moved off a legacy HRMS, with ESS, MSS and integration to payroll and finance.
Case study

Employee Central re-implementation, 33-channel broadcaster

Two SAP systems finally synchronized — Employee Central re-implemented and integrated with HCM Payroll over CPI.
Insight

Brownfield, greenfield or selective: choosing the route off ECC

The three migration routes compared on what actually decides it: history, custom code, downtime tolerance and appetite for process change.
Insight

Custom code remediation: what SAP Readiness Check does and does not tell you

The report gives you a count. It does not tell you which objects still matter, which are dead, or what they will cost to rebuild.

Frequently Asked Questions

Everything from migration readiness and transition-path assessment through S/4HANA system conversion, selective data transition and migration, custom code and clean core modernization, integration, reporting and landscape modernization, to cutover, validation and post-migration stabilization. It's as much about what you leave behind as what you move.

Three. A new implementation rebuilds processes on SAP standard, bringing across only data that earns it. A system conversion carries the system forward with configuration and history intact. A selective data transition sits between them, carrying chosen entities, processes or time periods into a redesigned target. Landscape complexity, process debt, data quality, custom code and appetite for change decide which fits best.

A system conversion moves the whole system — configuration, custom code, master data and history — in one exercise; the good comes with the bad. A selective data transition moves only defined scope: chosen company codes or business units, a time slice, master data and open items, redesigned rather than inherited. Conversion protects continuity; selective transition buys room to restructure, at a cost.

No — data migration is one workstream inside it. A migration also covers process decisions, custom code remediation, add-on and interface treatment, integration and reporting rework, security and role validation, and cutover and business readiness. Treated as just a data exercise, the rest of the scope tends to surface late, with far less room to plan.

An SAP tool analyzing your system for what stands between it and S/4HANA: simplification items, add-on and business-function compatibility, custom code impact, data volumes, recommended Fiori apps and integration considerations. It's a strong start, not a plan — findings still need interpreting, sizing, and remediation work with owners assigned.

It's inventoried against real usage — most estates find a large share is no longer called, and that goes. What remains is checked for S/4HANA compatibility, then remediated, replaced by standard functionality, or rebuilt as an extension: in-app, developer extensibility, or side-by-side on SAP BTP against released APIs and events. The goal: less code, left outside the core.

Less than most organizations first ask for. The real requirement is usually statutory retention, audit access and a workable comparative period for reporting — not every open item since go-live. We set history requirements against those obligations, meeting the rest through archiving or a read-only source. Every extra year carried forward extends migration cycles, testing, reconciliation and downtime — a decision, not a default.

It follows the path and the state of the landscape, not company size: entities and modules in scope, custom code needing remediation, data cleanliness, interfaces in play, and downtime the business can absorb. A focused conversion on a well-kept system takes months; a selective transition across multiple entities with restructuring and a modernized integration layer runs longer, in planned waves. We set the phase plan, gates and each phase's output before mobilization, not a duration quoted in the abstract.

Yes. We first assess whether RISE with SAP and SAP Cloud ERP Private suits your landscape, then handle what a subscription doesn't cover: readiness and remediation, custom code and extension treatment, data scope, integration rework, testing, cutover and stabilization. The commercial model changes who runs the infrastructure, not what your system must be before it moves.

Contact Us

Speak with VISCAP’s migration team about the system you're moving off, the history you need to keep, and the transition path with the least risk.

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