SAP Integration Suite: Connecting SAP and Non-SAP Systems
SAP Integration Suite is more than a rename of CPI. Here is how Cloud Integration, API Management and iFlows fit together to connect SAP with everything around it, and when the platform is the right call.
- SAP Integration Suite is SAP's cloud integration platform (an iPaaS), and Cloud Integration - still widely called CPI - is its core engine for building integration flows, or iFlows, that move and transform data between systems.
- It is more than CPI: API Management publishes, secures and governs APIs, and the suite adds prebuilt integration content, connectors and adapters, plus capabilities for events, data pipelines and business-to-business exchange.
- Choose it when SAP sits at the centre of your landscape and you want governed, maintainable integrations rather than point-to-point scripts that rot over time.
- The platform runs on SAP BTP and is built to connect SAP and non-SAP systems alike, which is exactly what a real landscape demands.
- Owning the platform is not the same as integrating well - the value comes from disciplined iFlow and API design, so budget for those practices, not just the licence.
SAP Integration Suite is SAP's integration platform as a service (iPaaS): a hosted toolkit for connecting SAP and non-SAP systems across your landscape. Its core engine is Cloud Integration, still widely called CPI, where you build integration flows (iFlows) that move and transform data between systems. On top of that, API Management governs how services are exposed and consumed, and the suite adds prebuilt content, adapters, and capabilities for events, data pipelines and business-to-business exchange. Choose it when SAP sits at the centre of your landscape and you want governed, maintainable integrations rather than brittle point-to-point scripts.
This guide explains what Integration Suite actually contains, how Cloud Integration and iFlows do the real work, what API Management adds, and when the platform is the right call. Integration is a landscape-wide concern, so if you want the broader picture of joining SAP to everything around it, our overview of SAP integration with non-SAP systems is a good companion. Here we focus on the tooling and the decisions that come with it.
What SAP Integration Suite Actually Is
SAP Integration Suite is an integration platform as a service, or iPaaS: a hosted toolkit for connecting applications, data and processes across your landscape. It is not a single feature but a set of capabilities that share one platform, one identity model and one operations experience.
It helps to see the whole set before zooming into any one part, because people often equate the suite with just its most famous component, Cloud Integration.
- Cloud Integration - the core engine, still commonly called CPI, for building integration flows that route, transform and enrich messages between systems.
- API Management - a layer to publish, secure, throttle and monitor APIs so other teams and partners can consume your services safely.
- Prebuilt integration content - packaged flows, connectors and adapters for common SAP and third-party scenarios, so you are not starting from a blank canvas.
- Additional capabilities spanning event-driven messaging, data pipelines and business-to-business exchange, depending on how the landscape needs to connect.
Cloud Integration and iFlows: The Core Engine
The heart of the platform is Cloud Integration, and the unit of work inside it is the integration flow, universally shortened to iFlow. An iFlow is a designed pipeline that receives a message, transforms it, and sends it onward, with all the routing and error handling in between. This is where most day-to-day integration development happens.
An iFlow is built graphically as a sequence of steps, and understanding those steps demystifies the whole tool.
- A sender adapter receives the message - over HTTP, SOAP, an SAP-specific protocol, a message queue, a file drop or many others.
- Processing steps in the middle map fields, convert formats such as XML to JSON, enrich from lookups, split or aggregate, and apply routing rules.
- A receiver adapter delivers the result to the target system using whatever protocol that system speaks.
- Error handling, logging and monitoring are built in, so a failed message is visible and recoverable rather than lost silently.
- Because the logic lives in a governed, versioned iFlow, it is maintainable by a team rather than trapped in one person's script.
iFlows are easy to start and easy to sprawl. Without naming conventions, reuse and shared error-handling patterns, a landscape can accumulate hundreds of one-off flows that are as hard to maintain as the scripts they replaced.
The Capabilities Inside the Suite
The suite bundles several distinct capabilities under one platform, and knowing which does what stops teams from reaching for the wrong tool. The table below maps each capability to the problem it solves.
The platform runs on SAP BTP and inherits its identity, connectivity and governance services, which our SAP BTP explainer covers in full. It also connects on-premise systems through a secure connectivity agent, so a cloud iFlow can reach a system inside your own network.
| Capability | What It Does | When You Reach For It |
|---|---|---|
| Cloud Integration (CPI) | Builds iFlows that route, transform and enrich messages between systems. | Moving and mapping data between SAP and other applications. |
| API Management | Publishes, secures, throttles and monitors APIs behind a gateway and developer portal. | Exposing services to internal teams or external partners under governance. |
| Prebuilt Integration Content | Packaged flows, connectors and adapters for common SAP and third-party scenarios. | Accelerating recurring integrations instead of starting from a blank iFlow. |
| Events and Data Pipelines | Event-driven messaging and data movement across the landscape. | Reacting to business events or feeding a data platform. |
| Business-to-Business Exchange | Structured document exchange with trading partners. | Connecting with external partners over standard B2B protocols. |
API Management: Governing How Systems Talk
If Cloud Integration is about moving data between systems, API Management is about governing how systems and teams consume services in the first place. The two solve related but distinct problems, and conflating them is a common source of confusion.
API Management sits in front of your services and turns raw endpoints into managed, governed products. This governed, product-minded way of exposing services is the same philosophy behind API-first development, where the interface is designed deliberately rather than emerging by accident, and it is what lets an SAP landscape participate in that discipline instead of leaking ad-hoc endpoints.
- Publishing exposes selected APIs through a gateway and a developer portal, so internal teams and partners can discover and consume them.
- Security applies authentication, authorisation and key management consistently, rather than each backend reinventing it.
- Traffic control adds rate limiting, quotas and throttling to protect backends from overload and to tier access by consumer.
- Analytics and monitoring show who is calling what, how often and how successfully, which is essential once external partners depend on you.
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Tell us which systems need to talk to your SAP core and where the current connections hurt, and we will help you design maintainable iFlows and a governed API layer instead of another round of point-to-point fixes.
Connecting SAP and Non-SAP Systems in Practice
The whole point of the suite is that it does not care whether a system carries an SAP badge. It is built to connect SAP and non-SAP alike, which is precisely what a real landscape demands, because the interesting integrations almost always cross that boundary.
In practice, a typical set of connections looks like the table below, and the same tooling handles all of them.
| Connection Type | Example | How the Suite Handles It |
|---|---|---|
| SAP to SAP | S/4HANA exchanging master data or documents with another SAP system. | SAP-aware adapters that understand the protocols. |
| SAP to Third-Party SaaS | Pushing orders to a logistics provider or syncing customers with a CRM. | Connectors and adapters for common cloud applications. |
| Non-SAP to Non-SAP | Brokering a connection that never touches SAP at all. | The platform acts as a general integration hub. |
| Inbound APIs | A website, mobile app or partner calling SAP functionality. | SAP capabilities exposed as governed APIs, no direct system access. |
When to Choose SAP Integration Suite
As with any platform, the tool is right for a profile rather than for everyone, and being clear about that profile saves money and regret. Use the decision matrix below to judge it against your actual landscape rather than the promise of seamless connectivity.
| Your Situation | Integration Suite Fit | Why |
|---|---|---|
| SAP at the centre, many surrounding systems | Strong fit | Governed, maintainable integrations to a wide landscape are its core purpose. |
| You need to expose SAP as managed APIs | Strong fit | API Management governs internal and partner consumption properly. |
| Tiny integration needs unlikely to grow | Reconsider | A lighter tool or a couple of well-tested scripts may be enough for now. |
| SAP is minor in a largely non-SAP estate | Reconsider | An incumbent iPaaS may already serve you, so the SAP-specific edge matters less. |
Owning the platform is not the same as integrating well. The value comes from disciplined design - reuse, naming, error handling and API governance - so budget for those practices, not just the licence.
Implementing Integration Suite: A Practical Checklist
A successful rollout follows a predictable order: understand the landscape, set standards early, then build. Work through the steps below rather than jumping straight into your first iFlow.
- Map the systems that must connect and the direction and frequency of each data flow.
- Provision Integration Suite on SAP BTP and set up identity, connectivity and the on-premise connectivity agent.
- Agree naming conventions, reuse patterns and a shared error-handling template before anyone builds a production flow.
- Start with prebuilt content for common scenarios and adapt it, rather than building every iFlow from scratch.
- Design the API layer deliberately: decide which services to expose, and apply security and rate limits in API Management.
- Build, test and monitor each iFlow with logging in place, so failed messages are visible and recoverable.
- Review flows regularly for sprawl, retire duplicates, and keep the catalogue governed as the landscape grows.
Common Mistakes Teams Make
Most Integration Suite problems are not tooling failures but discipline failures, and they repeat across landscapes. Avoiding the patterns below is often the difference between a maintainable platform and an expensive tangle.
- Treating the suite as just CPI and never adopting API Management, so services leak as ad-hoc endpoints.
- Building one-off iFlows with no naming conventions or reuse, recreating the sprawl the platform was meant to solve.
- Skipping shared error-handling patterns, so failures are silent and every flow debugs differently.
- Buying the licence without budgeting for the design discipline that actually delivers the value.
- Point-to-point thinking inside the tool - wiring systems directly instead of governing how services are exposed and consumed.
The tools rarely fail. What fails is treating integration as a series of quick fixes rather than a governed capability with standards and ownership.
Conclusion
SAP Integration Suite is best understood as SAP's iPaaS, with Cloud Integration and its iFlows doing the heavy lifting of moving and transforming data, and API Management governing how services are exposed and consumed. It is more than a rename of CPI, and its real purpose is to connect SAP and non-SAP systems cleanly so your landscape behaves like one business rather than a tangle of point-to-point links. It suits organisations with SAP at the centre that value governed, maintainable integration, and it rewards the discipline of good iFlow and API design. If you want help deciding whether it fits and how to modernise your connections, contact us and we will map it out with you.
Frequently asked questions
What is SAP Integration Suite and how does it relate to CPI?
SAP Integration Suite is SAP's cloud integration platform as a service, and Cloud Integration - still widely called CPI, from its former name Cloud Platform Integration - is its core engine for building integration flows that move and transform data between systems. So CPI is not a separate product from Integration Suite; it is the central capability within it. The suite adds more around that engine, including API Management, prebuilt integration content, and capabilities for events, data pipelines and business-to-business exchange. Calling the whole thing CPI is common but understates what the suite includes.
What is an iFlow in SAP Cloud Integration?
An iFlow, short for integration flow, is a designed pipeline inside Cloud Integration that receives a message, transforms it, and sends it onward to a target system. It is built graphically as a sequence of steps: a sender adapter receives the message, processing steps map fields and convert formats and apply routing, and a receiver adapter delivers the result. Error handling, logging and monitoring are built in, so failed messages are visible and recoverable. Because the logic lives in a governed, versioned iFlow, it is maintainable by a team rather than trapped in an individual's script.
What does SAP API Management add on top of Cloud Integration?
Cloud Integration moves and transforms data between systems, while API Management governs how services are exposed and consumed in the first place, so they solve related but distinct problems. API Management publishes selected APIs through a gateway and developer portal, applies consistent authentication and key management, and adds rate limiting and quotas to protect backends. It also provides analytics on who is calling what and how successfully, which becomes essential once external partners depend on your APIs. In short, it turns raw endpoints into managed, governed products rather than ad-hoc connections.
Can SAP Integration Suite connect non-SAP systems?
Yes, connecting SAP and non-SAP systems is precisely what it is built for. It can broker SAP-to-SAP exchanges, SAP-to-third-party integrations such as pushing orders to a logistics provider or syncing with a CRM, and even non-SAP-to-non-SAP connections where it acts as a general integration hub. A broad set of adapters and prebuilt content covers common protocols and scenarios on both sides of the SAP boundary. It can also expose SAP functionality as governed APIs so a website, mobile app or partner can consume it without direct system access.
How does SAP Integration Suite relate to SAP BTP?
SAP Integration Suite runs on SAP BTP, the Business Technology Platform, and inherits its identity, connectivity and governance services rather than duplicating them. That placement means you plan identity, security and operations once, at the platform level, and integration is observed alongside the rest of your SAP cloud estate. It also connects on-premise systems through a secure connectivity agent, so a cloud iFlow can reach a system inside your own network. It complements analytics and data tools rather than competing with them, moving and exposing the data that platforms then model.
When should a company choose SAP Integration Suite?
It is the right choice when SAP sits at the centre of your landscape and you need governed, maintainable integrations to many surrounding systems, or when you want to expose SAP capabilities as managed APIs under proper governance. It is less compelling if your integration needs are very small and unlikely to grow, or if SAP is a minor part of a largely non-SAP estate already served well by another iPaaS. The deciding factors are how central SAP is and how much you value governance and maintainability over quick point-to-point fixes. Remember that owning the platform is not enough; the value comes from disciplined iFlow and API design.
What are the most common mistakes when adopting Integration Suite?
The most common mistake is treating the suite as just CPI and never adopting API Management, so services leak as ad-hoc endpoints. Close behind is building one-off iFlows with no naming conventions or reuse, which recreates the very sprawl the platform is meant to solve. Skipping shared error-handling patterns leaves failures silent and every flow debugging differently. Finally, teams often buy the licence without budgeting for the design discipline that actually delivers value. Most problems here are discipline failures rather than tooling failures, so standards, reuse and governance matter more than any single feature.