SAP PI/PO to SAP Integration Suite Migration: A Practical Roadmap for 2026 and Beyond
Turn an approaching maintenance deadline into a disciplined integration-modernisation programme-one that simplifies the estate, strengthens governance and protects critical business flows.
END-TO-END ROADMAP
RETIRE TO RETAIN
WAVE PRIORITISATION
PLANNING MILESTONE*
For organisations running SAP Process Integration or SAP Process Orchestration (PI/PO), migration planning is no longer a d
istant roadmap item. SAP PI/PO on SAP NetWeaver 7.5 approaches the end of mainstream maintenance in 2027, with extended maintenance available to 2030 for eligible customers. That creates a clear planning horizon, but the programme should not be treated as a hurried technical replacement.
A successful SAP PI/PO to SAP Integration Suite migration is an opportunity to simplify the integration estate, strengthen governance and support cloud, API and event-driven scenarios. The best programmes combine portfolio assessment, target architecture, selective redesign, automated tooling where appropriate, rigorous testing and an operational model that is ready before go-live.
Terminology Matters:
SAP Cloud Platform Integration, often searched for as SAP CPI, is now known as the Cloud Integration capability within SAP Integration Suite. SAP Integration Suite is the broader integration platform and can include capabilities such as Cloud Integration, API Management and event-driven integration. These terms should not be used interchangeably without context.
The maintenance timeline is important, but it should not be the only reason to move. The stronger business case is integration modernisation: reducing ageing middleware dependencies while building an architecture that can support SAP S/4HANA, SaaS applications, partner ecosystems, APIs and real-time events.
- A managed cloud integration platform can reduce responsibility for underlying middleware infrastructure, although subscription, network, security and operating costs still require active management.
- Prepackaged integration content, adapters and APIs can accelerate delivery when they fit the business scenario and are governed consistently.
- Cloud Integration supports hybrid connectivity across cloud and on-premise applications, enabling staged transformation rather than a forced all-at-once move.
- Central monitoring, message tracking and alerting can improve support visibility when observability, ownership and escalation procedures are designed properly.
- API-led and event-driven patterns can reduce point-to-point complexity and make new digital services easier to extend.
- Modern DevOps practices can improve transport control, versioning, automated testing and release repeatability across integration environments.
These outcomes are not automatic. A poorly governed cloud platform can recreate the same customisation, monitoring and support problems found in a legacy landscape. Architecture standards and operational discipline remain essential.
| Dimension | SAP PI/PO | SAP Integration Suite target state |
|---|---|---|
| Deployment | Customer-managed, NetWeaver-based middleware | Cloud-based integration platform on SAP Business Technology Platform |
| Core design artefact | Integration Directory and ESR objects | Integration flows (iFlows), APIs, events and reusable packages |
| Scaling | Bound by installed infrastructure and capacity planning | Service-based scaling within contracted entitlements and platform limits |
| Operations | PI/PO monitoring and customer-built operational processes | Cloud monitoring, message tracking, alerting and optional integration with enterprise observability tools |
Lifecycle | Patches, upgrades and infrastructure managed by the customer | SAP manages the cloud service; customers still manage content, releases, security, connectivity and support processes |
| Modernisation scope | Primarily message and process integration | Cloud integration plus API, event and partner-integration patterns, depending on licensed capabilities |
Retire
Replace
Migrate
Modernise
Redesign high-value scenarios using APIs, events, canonical models or simpler mappings.
Temporarily retain
SAP’s Migration Assessment capability can help estimate effort and identify modernisation opportunities. Migration tooling is pattern-based, so generated content still requires expert review, remediation, testing and operational hardening.
Use the roadmap below as an interactive programme spine. Select any phase to see its objective and principal design focus.
Seven connected phases · select a step to explore
Step - 1
Establish the case for change
Confirm business drivers, maintenance exposure, programme outcomes, funding, governance and the relationship to SAP S/4HANA or wider cloud transformation.
Step - 2
Discover and assess the portfolio
Step - 3
Design the target architecture
Step - 4
Classify and sequence migration waves
Step - 5
Build, migrate and modernise
Step - 6
Test end to end
Step - 7
Cut over, stabilise and decommission
A practical wave plan balances delivery speed with business risk. Score each interface against four factors:
Business criticality
Technical complexity
Dependency
Reuse potential
| Factor | Questions to ask | Planning implication |
|---|---|---|
| Business criticality | Would failure stop revenue, supply, finance, payroll or regulatory reporting? | Critical interfaces require stronger resilience, rollback and parallel-run controls. |
| Technical complexity | Are there custom adapters, Java mappings, BPM, large payloads or unusual protocols? | High-complexity scenarios need early proof of concept and more design effort. |
| Dependency | Does the interface move with an S/4HANA release, SaaS deployment or partner change? | Align the wave to the dependent programme and avoid duplicate rework. |
| Reuse potential | Can a common security, mapping, API or exception pattern support multiple interfaces? | Build reusable foundations early to increase later-wave velocity. |
| Challenge | Practical response |
|---|---|
| Incomplete interface inventory | Combine technical extraction with workshops involving application owners, support teams and business process leads. Validate inactive, duplicate and shadow integrations. |
| Unsupported adapters or protocols | Identify gaps during assessment and select supported adapters, APIs, event patterns, managed file-transfer options or an approved complementary platform. |
| Complex mappings and custom functions | Simplify logic before rebuilding. Use message mapping, XSLT or controlled scripting only where each option is supportable and testable. |
| BPM/BRM or stateful orchestration | Separate integration from workflow requirements and redesign on the appropriate SAP or enterprise process-automation service. |
| Security design left until late | Define identity, certificates, OAuth flows, secrets, network zones, encryption, logging and privileged access before build waves begin. |
| Weak monitoring and support readiness | Create business-relevant alerts, dashboards, runbooks, ownership matrices, retry rules and service-management integration; rehearse before go-live. |
| Business disruption at cutover | Use dependency-based sequencing, message reconciliation, freeze controls, rollback criteria and stakeholder communications. |
| Cloud cost and capacity surprises | Model volumes, storage, logging, API consumption, non-production usage and growth. Revisit entitlements and retention settings during each wave. |
An interface is not proven simply because a message reaches the receiver. Testing should demonstrate that the complete business transaction remains accurate, secure, observable and recoverable.
- Validate positive, negative, duplicate, late-arriving and reprocessing scenarios.
- Reconcile record counts, control totals, timestamps, currencies, units and business status across source and target applications.
- Test peak and sustained volumes, large payloads, connection failures, certificate expiry and downstream unavailability.
- Confirm logs do not expose personal, financial or commercially sensitive payload data beyond the approved operational need.
- Prove alert routing, incident creation, support access, restart procedures and business communication paths.
- Obtain business-owner acceptance for the process outcome and operational-owner acceptance for supportability.
Use a balanced scorecard rather than reporting only the number of migrated interfaces. Useful measures include:
01
Percentage of interfaces assessed, retired, replaced, migrated, modernised and retained.
02
Wave predictability: planned versus completed interfaces and defect escape rate.
03
Message success rate, processing latency and recovery time for priority business flows.
04
Reduction in custom code, duplicate mappings and unsupported connection patterns.
05
06
07
GSC Technolabs can support the full SAP PI/PO to SAP Integration Suite journey—from discovery and migration assessment through target architecture, iFlow development, testing, cutover and managed support. The engagement can be structured as a focused assessment, a phased migration factory or an extension of your internal SAP integration team.
- Interface inventory, complexity assessment and wave roadmap
- SAP Integration Suite architecture, connectivity and security design
- Cloud Integration development, migration tooling and interface modernisation
- API, event and hybrid-integration design
- Automated testing, reconciliation, cutover planning and hypercare
- Monitoring, incident management, optimisation and application managed services
Begin with an evidence-based migration assessment. A prioritised interface inventory will clarify cost, risk, reusable patterns and the most practical route to 2027 and beyond.
Is SAP CPI the same as SAP Integration Suite?
Not exactly. SAP CPI is the familiar former name for what SAP now calls the Cloud Integration capability. SAP Integration Suite is the broader platform and includes additional integration capabilities, subject to licensing and service availability.
Can every PI/PO interface be migrated automatically?
No. SAP provides assessment and pattern-based migration tooling, but complex mappings, custom code, adapters, BPM scenarios and security designs may require remediation or redesign. Every generated artefact must be reviewed and tested.
Should we use a phased or big-bang migration?
Most large estates benefit from phased waves because they reduce operational risk and allow reusable patterns to mature. A big-bang approach may suit a small, well-understood estate with limited dependencies, but it still requires a rehearsed rollback plan.
Can SAP Integration Suite connect cloud and on-premise systems?
Yes. Cloud Integration supports hybrid integration patterns, provided network connectivity, identity, certificates, firewall rules and runtime dependencies are designed and operated correctly.
How long does a PI/PO migration take?
Duration depends on interface count, complexity, business criticality, custom code, testing scope, environments and resource availability. A structured assessment is required before committing to a reliable timeline.
Do we need to redesign all interfaces?
No. Use a fit-for-purpose treatment: retire, replace, migrate, modernise or temporarily retain. Redesign is most valuable where it removes technical debt, enables APIs or events, improves resilience or simplifies future change.
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