SAP BTP Development Services
SAP BTP is where custom development belongs in a clean-core world. Instead of modifying S/4HANA, you build side-by-side applications and extensions on BTP that consume released SAP APIs — so your core stays standard and upgradeable.
CssInfotech builds production BTP applications using the SAP Cloud Application Programming Model (CAP), the ABAP environment, SAP HANA Cloud and SAP Build, with the security, multitenancy and CI/CD setup that real deployments need.
Why Build on SAP BTP Instead of Inside S/4HANA?
This is the single most consequential architecture decision in a modern SAP programme, and it is worth being explicit about the reasoning.
The cost of in-core modification
Every modification and Z-object inside the SAP core has to be re-tested at every upgrade, and some have to be reworked. Over a decade, that accumulated custom code is the main reason S/4HANA conversions become expensive — the technical debt is paid at every single release.
Side-by-side extensibility
With side-by-side extensibility, your custom application runs on BTP and talks to S/4HANA through released, versioned APIs and business events. The core receives no modifications, so it upgrades cleanly. Your extension has its own lifecycle, its own release cadence, and its own technology choices.
What clean core actually requires
Clean core is not just "build it elsewhere". It means consuming only released APIs, avoiding direct table reads, using extension points where SAP provides them, and keeping business logic out of the core unless it genuinely belongs there. We apply that discipline as a build standard, and we will tell you when a requirement genuinely does belong in the core.
Our SAP BTP Development Services
We build applications that survive contact with production — authenticated, multitenant-capable, monitored and deployable through a pipeline.
CAP Application Development
SAP's Cloud Application Programming Model, used properly.
- Domain modelling with CDS, exposed as OData V4 services
- Node.js and Java service implementations with custom handlers
- SAP HANA Cloud persistence with versioned schema deployment
- Fiori elements frontends generated from CDS annotations
ABAP Environment (Steampunk)
For teams whose skills and logic are already ABAP.
- ABAP Cloud development with released APIs only
- RAP business objects exposed as OData services
- ABAP environment as a side-by-side extension host
- Embedded steampunk within S/4HANA where appropriate
S/4HANA & ECC Extensions
Extend SAP processes without touching the core.
- Released OData and SOAP API consumption via destinations
- Business event subscription through SAP Event Mesh
- Approval, validation and enrichment apps running on BTP
- In-app extensibility assessment before building side-by-side
Security & Identity
The part that is skipped in prototypes and mandatory in production.
- XSUAA and Authorization & Trust Management configuration
- SAP Cloud Identity Services, SSO and SAML / OIDC federation
- Role collections, scopes and attribute-based authorisation
- Destination service and Cloud Connector for backend access
SAP Build & Low-Code
Not every requirement justifies a full development project.
- SAP Build Apps for citizen-developed and mobile scenarios
- SAP Build Process Automation for workflow and RPA
- SAP Build Work Zone for launchpads and digital workplaces
- Governance so low-code does not become shadow IT
DevOps & Platform Operations
Repeatable deployment instead of manual releases.
- MTA build and deployment to Cloud Foundry or Kyma
- CI/CD with SAP Continuous Integration and Delivery, GitHub Actions or Azure DevOps
- Subaccount, directory, entitlement and quota design
- Application logging, alerting and cost monitoring
Choosing Your BTP Runtime and Programming Model
There is no universally correct answer here. The right choice depends on your existing skills, your integration needs and how the application will be operated.
| Option | Best suited to | Practical trade-off |
|---|---|---|
| CAP on Node.js | New cloud-native apps, fast delivery, JavaScript skills | Large ecosystem and quick iteration; needs JS engineering discipline |
| CAP on Java | Complex business logic, existing Java teams | Stronger typing and tooling; heavier build and longer startup |
| ABAP Environment | Teams with deep ABAP skills, ABAP-heavy logic | Reuses existing skills; released-API-only constraint takes adjustment |
| Kyma runtime | Container workloads, microservices, non-SAP stacks | Maximum flexibility; you take on Kubernetes operating effort |
| SAP Build Apps | Simple UIs, mobile capture, citizen development | Very fast to build; limited for complex logic and needs governance |
Our BTP Development Process
We deliver in a way that gets a real, deployed, authenticated application in front of users early — not a demo that later needs rebuilding for production.
- Extensibility assessmentFirst we check whether in-app extensibility or a standard SAP capability already covers the requirement. Not everything needs a new application.
- Architecture & landscape designRuntime, programming model, subaccount and environment strategy, identity provider, and the API contract with the SAP core.
- Platform foundationSubaccounts, entitlements, destinations, Cloud Connector, XSUAA and CI/CD pipeline set up before feature development begins.
- Iterative buildTwo-week sprints delivering deployable increments, with authentication and authorisation wired in from the first sprint rather than bolted on.
- HardeningLoad testing, error handling, logging, alerting, cost review and a security review against SAP BTP security recommendations.
- Go-live & operateProduction deployment, monitoring dashboards, documented runbooks, and optional ongoing operation by our team.
SAP BTP Services & Tools We Work With
BTP is a large catalogue. These are the services we use in real client deployments, rather than a list copied from a brochure.
Runtimes & models
- Cloud Foundry
- Kyma / Kubernetes
- ABAP Environment
- CAP (Node.js)
- CAP (Java)
- ABAP RAP
- CDS
- MTA
Platform services
- SAP HANA Cloud
- Destination service
- XSUAA
- SAP Cloud Identity Services
- Event Mesh
- SAP Build Work Zone
- Launchpad service
- Job Scheduler
- Object Store
- Application Logging
- Alert Notification
- Document Management
Development & DevOps
- SAP Business Application Studio
- VS Code
- SAP CI/CD service
- GitHub Actions
- Azure DevOps
- Git
- Cloud Foundry CLI
- btp CLI
- Terraform provider for BTP
Benefits You Should Expect From a BTP Extension Strategy
These are the outcomes that justify the platform cost. If a BTP programme is not delivering these, something is wrong with the approach.
- Cheaper S/4HANA upgrades — less custom code inside the core to retest
- Independent release cadence — ship extensions without an ERP release window
- Modern developer experience — Git, CI/CD, automated tests as standard
- Reusable APIs and events — build once, consume from many applications
- Elastic cost model — scale consumption to actual usage
- Access to broader skills — Node.js and Java talent, not only ABAP
- Cleaner audit position — central identity, roles and application logging
- Faster experimentation — prove an idea without touching production ERP
Industries We Serve
BTP extension work tends to follow industry-specific processes that standard SAP does not cover.
Why Choose CssInfotech for SAP BTP
BTP rewards teams who are genuinely good at cloud application engineering, not only at SAP configuration. We are a software company first.
Production-grade from sprint one
Authentication, authorisation, logging and a deployment pipeline are set up before feature work. Retrofitting security into a working prototype is the most common BTP failure mode.
We will talk you out of building
If in-app extensibility, a key user adaptation or a standard SAP capability solves the problem, we say so. A BTP application you did not need is a permanent operating cost.
Clean core as a build standard
Released APIs, no direct table access, documented API contracts with the core. This is checked in code review, not left to individual judgement.
Both ABAP and cloud-native skills
We can build in CAP or in the ABAP environment, and advise honestly on which suits your team's ability to maintain it after we hand over.
Cost transparency
BTP consumption costs surprise a lot of customers. We model expected consumption during design and monitor it after go-live.
Long-term partnership
We support and enhance what we build. Most of our BTP clients continue with us on a retained basis after the initial delivery.
SAP BTP Development FAQs
What is SAP BTP in simple terms?
SAP Business Technology Platform is SAP's platform-as-a-service. It gives you application runtimes, a managed HANA Cloud database, identity and authorisation services, integration, analytics and low-code tools, all pre-integrated with SAP applications. You use it to build and run custom applications and extensions outside your SAP core.
Should we use CAP or the ABAP environment?
It largely comes down to who will maintain the application. If your team is ABAP-strong and the logic is ABAP-shaped, the ABAP environment reuses those skills directly. If you want a cloud-native stack, easier hiring and a faster build cycle, CAP on Node.js or Java is usually the better long-term choice. We assess this with you rather than defaulting to a preference.
Does clean core mean we can never write custom code in S/4HANA?
No. It means custom code should not modify SAP objects or rely on unreleased internals. In-app extensibility, custom fields, custom CDS views and released extension points are all legitimate and often the right answer. Clean core is about where and how you extend, not about never extending.
How much does SAP BTP cost to run?
It depends entirely on the services consumed — runtime memory, HANA Cloud capacity, integration message volume and so on. It is consumption-based, usually through cloud credits. We model expected consumption during design and monitor actual spend after go-live, because unmanaged BTP costs are a real and common problem.
Can BTP extensions work with SAP ECC, not just S/4HANA?
Yes. ECC exposes plenty through RFC, BAPI, IDoc and Gateway OData services, and the Cloud Connector makes those reachable from BTP. You have fewer released APIs and no business events out of the box, so integration design takes more care — but building extensions on BTP while still on ECC is a sensible way to reduce the custom code you later have to convert.
Can you help us set up BTP governance for multiple teams?
Yes. That means a directory and subaccount structure, entitlement and quota allocation, naming standards, a shared CI/CD approach, identity provider integration, and a review gate so teams do not each invent their own architecture. We have set this up for organisations running several parallel development streams.
Related SAP Services
BTP development connects naturally to these services.
Build Your Next SAP Extension the Upgrade-Safe Way
Tell us the process you need to extend and which SAP release you are on. We will recommend in-app or side-by-side, the runtime that fits your team, and what it will cost to build and run.