Extend SAP without touching the core

Every SAP landscape has processes that standard S/4HANA cannot cover and business logic too specific for off-the-shelf configuration. BCS builds these extensions on SAP Business Technology Platform, keeping the S/4HANA core clean while delivering the exact process the business requires, at the speed agile development allows.

MVP Delivery
6 weeks

Average time from requirements to working MVP on SAP BTP using BCS development accelerators

Clean Core
100%

BCS BTP extensions carry zero S/4HANA core modifications, every delivery is upgrade-safe by design

Build Acceleration
40%

Faster application delivery using SAP Build and BCS reusable component library

Trusted by leading enterprises worldwide

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Extension Architecture

Pro-code, low-code, or AI services — BCS designs the right architecture

The choice between pro-code and low-code is not a preference, it is an architecture decision driven by complexity, data model requirements, integration depth, and who will own the application after delivery. Getting it wrong costs more to fix than it would have cost to design correctly.

BCS evaluates every extension requirement against SAP's clean-core boundaries before any build decision is made. Complex business logic with custom data models runs on CAP. Business-owned approvals and process extensions run on SAP Build. AI-driven capabilities are embedded via BTP AI Services. The architecture governs the choice, not the preference of the development team.

BUSINESS REQUIREMENTS Process Gaps Beyond standard SAP Custom Logic Complex business rules New Capabilities AI · Analytics · Mobile BCS BTP DEVELOPMENT Architect · Build · Operate CAP / RAP Pro-code SAP BUILD Low-code BTP AI AI Services Architecture governs the choice — clean core enforced on every path DevOps from sprint one · Upgrade-safe APIs · Symphony embedded S/4HANA Extension Side-by-side · Clean core Business App Owned · Maintainable Intelligent App AI · Predictive · Embedded DEPLOYED ON SAP BTP · UPGRADE-SAFE · SYMPHONY-ENABLED
Why BTP Projects Fail

The failure modes that turn BTP extensions into liabilities

BTP custom development projects that fail do so predictably, and almost always for the same set of architectural and governance reasons. Clean core violated at the start, APIs selected without performance validation, no DevOps discipline, no performance testing at scale. BCS is structured to prevent each one before it occurs.

× Industry norm What usually happens
✓ BCS approach How we prevent it
×
Clean core violated at the start
The development team used BTP as a justification to modify S/4HANA objects directly, creating exactly the technical debt the extension was meant to avoid.
Clean core enforced from the first architecture review
BCS runs a clean core architecture review before any development begins. Every requirement is classified as standard SAP, BTP extension, or unavoidable custom build. No modifications touch the standard namespace.
×
No architecture review
Applications built directly on BTP without a design phase, accumulating inconsistent data models, duplicate APIs, and integration patterns that cannot be maintained or reused.
Architecture governance gate before the first development sprint
Solution architecture, API selection, authentication design, and deployment topology are reviewed and approved before development begins. Technical debt is prevented by design, not managed retrospectively.
×
S/4HANA API selection wrong
The extension consumes S/4HANA data through incorrect or deprecated API surfaces, creating fragile dependencies that break during S/4HANA upgrades.
SAP API selection validated against performance and maintenance cost
BCS evaluates OData, SOAP, and RFC options for each integration point against documented performance benchmarks and long-term maintenance implications before any API dependencies are committed to.
×
Low-code scope creep
A simple approval workflow built in SAP Build expanded to cover complex business logic it was never designed for, delivering a fragile application that citizen developers cannot maintain.
Scope governance built into every sprint review
Each sprint has a defined boundary, a review gate, and a backlog prioritisation process. Low-value extension requests do not consume budget intended for business-critical capabilities.
×
No DevOps or transport management
BTP applications developed and deployed manually, no CI/CD pipeline, no transport controls, no version history. Changes cannot be traced and rollbacks are manual.
CI/CD pipeline and transport management established from sprint one
The development pipeline, quality gate automation, and transport management are set up in the project setup phase. Every release is deployed through a consistent, repeatable process from the first delivery sprint.
×
Performance not tested at scale
Applications tested with sample data. Production volumes reveal performance issues in CAP queries, HANA views, or integration call patterns that require expensive rearchitecting.
Performance testing embedded in the acceptance criteria
Load and performance test scripts are authored alongside functional test cases. Every BTP extension is validated against production-representative data volumes before go-live sign-off is given.
Business Outcomes

What well-built BTP extensions deliver to the business

BTP extensions close the gap between what standard SAP delivers and what the business actually needs, without touching the core. A platform that stays upgradeable, a differentiating capability owned by the business, and architecture that does not accumulate modification debt over time.

Process differentiation without technical debt

Genuine business process differentiators can be built on BTP without touching the S/4HANA core. Competitive advantage is delivered through the extension layer, not through customisations that lock the upgrade path.

Faster process execution

Manual approval chains, paper-based inspections, and Excel-driven workflows replaced with purpose-built BTP applications that execute in seconds and route automatically.

S/4HANA stays upgrade-safe

Every BCS BTP extension uses stable, versioned S/4HANA APIs and clean-core integration patterns. SAP quarterly innovations are adopted without breaking extension integrations.

Operational excellence through SAP transformation

Consistent user experience

BTP applications built on SAP Fiori design principles deliver the same look, feel, and interaction model as standard SAP applications, reducing training overhead and adoption friction.

Applications that scale with the business

BCS BTP applications are designed for production volumes and multi-tenant operation from the architecture phase. Scale is a design input, not a production discovery.

Business ownership of low-code applications

SAP Build applications delivered with citizen developer enablement and governance, so the business owns and evolves the process extension without raising a development ticket.

Methodology

How BCS delivers BTP custom applications

BCS BTP development follows a five-phase approach that enforces clean-core compliance, architecture quality, and DevOps discipline from the first sprint. Every extension is designed to the SAP CAP or RAP standard and tested against the S/4HANA upgrade path before it reaches production.

01
Phase 1

Discover & Scope

Requirements workshops, process mapping, clean-core compliance assessment, and BTP capability selection. Pro-code vs. low-code architecture decision made based on complexity, ownership, and lifecycle requirements.

02
Phase 2

Architecture & Design

CAP data model design, API surface selection, integration architecture, UI/UX design, DevOps pipeline setup, and transport management. Architecture review gate before build begins.

03
Phase 3

Build, Sprint 1 to MVP

Iterative sprint delivery using BCS component library and SAP Build accelerators. Working application in the hands of business users by sprint 3, not at programme end.

04
Phase 4

Test & Harden

Functional testing, integration testing with S/4HANA and third-party systems, performance testing at production volumes, and security review against BTP security guidelines.

05
Phase 5

Deploy & Enable

Production deployment through CI/CD pipeline, end-user training, citizen developer enablement (for low-code applications), and transition to a BCS-managed or client-operated support model.

Core Capabilities

BTP development depth across the full platform

BCS BTP practice covers every development surface of the platform, from CAP enterprise applications and SAP Build low-code solutions to BTP AI services and API management. Each capability is delivered within the clean-core boundary, with DevOps governance and upgrade-safe API patterns built in from the first sprint.

SAP Cloud Application Programming (CAP)

Full-stack CAP application development, CDS data model design, OData service exposure, custom handlers, and SAP Fiori Elements or freestyle UI5 frontend. BCS CAP component library accelerates common development patterns by 40%.

SAP Build Apps

Low-code application development for business-owned process extensions. Form-based UIs, approval workflows, and mobile applications without code, delivered with governance and citizen developer enablement.

SAP Build Process Automation

Workflow design, approval routing, robotic process automation, and business rule management. Process extensions that connect SAP and non-SAP systems through a visual workflow builder.

SAP Fiori & UI5 Development

Custom Fiori applications and UI5 freestyle development for complex UI requirements. Fiori design guidelines compliance, responsive layout, and accessibility built into every delivery.

BTP Integration & APIs

CPI iFlow development, BTP API Management configuration, and event-driven patterns using SAP Event Mesh. Application integration built on the same integration architecture as the core SAP landscape.

BTP AI & Machine Learning Services

SAP AI Core and AI Launchpad for document processing, demand forecasting, and recommendation use cases. BTP AI services integrated with CAP applications and S/4HANA business processes.

BTP Security & Authorisations

SAP BTP Security (XSUAA), role collections, app-to-app communication, and principal propagation from S/4HANA. Security architecture reviewed against SAP BTP security hardening guidelines.

BTP DevOps & Transport

CI/CD pipeline setup on SAP BTP, transport management, automated testing integration, and multi-environment promotion. Development lifecycle governed from day one.

BTP Analytics & SAC Integration

CDS analytical views, SAP Analytics Cloud story connectivity, and embedded analytics using SAP Fiori analytical apps. Reporting built into the application layer, not added later.

The BCS Difference

In-house Accelerators for BTP Custom App Development Services

BCS embeds three proprietary platforms into every BTP application programme. Symphony makes applications autonomous. deKorvai adds predictive intelligence to application data. Anugal embeds compliance into application workflows. These are not add-ons, they are part of the architecture from the first design sprint.

Agentic Operations Platform

Symphony

Symphony agents are embedded into BTP application workflows at go-live, autonomously handling approval routing, exception escalation, and background process execution within the application architecture. BTP applications built with Symphony do not just collect and display data; they execute the process logic they represent without manual intervention.

  • Agentic workflow integration inside BTP applications
  • Autonomous approval routing and exception handling
  • Symphony agents callable from CAP and SAP Build workflows
  • Background process automation layered on BTP apps at go-live
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AI Decision Intelligence

deKorvai

BTP applications built on clean S/4HANA data are the ideal surface for embedded intelligence. deKorvai connects to BTP application data layers and pushes predictive signals, recommendations, and anomaly alerts directly into the UI, so the application does not just display information but acts on it.

  • Predictive analytics embedded directly into BTP application UIs
  • AI-powered recommendations surfaced within Fiori applications
  • Demand and anomaly signals available as BTP API services
  • Decision intelligence replacing manual data analysis in process UIs
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Compliance & Controls Automation

Anugal

BTP applications that process regulated transactions must meet the same compliance standard as core SAP. Anugal embeds controls monitoring, automated audit trail generation, and access risk governance directly into BTP application workflows, ensuring every automated step and user action generates traceable compliance evidence from the first transaction.

  • Compliance controls embedded into BTP application workflows
  • Audit trail generation for regulated BTP business processes
  • Access risk monitoring for BTP application role assignments
  • Regulatory reporting from BTP application data without manual extraction
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Why BCS

What makes BCS different for SAP BTP development

12 years of SAP delivery and 40+ enterprise programmes have shaped a BTP practice where architecture quality is enforced before the first sprint, not reviewed after the first production incident. Most BTP projects succeed in the build and fail in operations and upgrade cycles. Here is what BCS does differently.

Architecture before code

Every BCS BTP programme starts with an architecture design phase. Data model, API surface, integration patterns, and clean-core compliance rules are defined before the first sprint begins.

Clean core enforced as a delivery standard

BCS BTP extensions use only stable, versioned S/4HANA OData and REST APIs. No direct BAPI calls, no RFC dependencies, no modification namespace violations. Upgrade safety is non-negotiable.

Component library compresses delivery time

BCS maintains a reusable CAP component library, authentication patterns, S/4HANA integration adapters, Fiori layout templates, and error handling frameworks. The first sprint starts from a tested baseline.

DevOps from sprint one

CI/CD pipeline, transport management, automated testing, and multi-environment promotion are set up before the first line of application code. Quality gates do not appear at go-live.

Pro-code and low-code in one programme

BCS designs hybrid architectures where complex logic runs in CAP and business-owned processes run in SAP Build, giving the business ownership of what it should own without sacrificing architecture integrity.

Post-delivery ownership transfer

BCS BTP deliveries include citizen developer enablement for low-code applications and developer documentation for pro-code applications, so the client owns the asset after go-live.

Get Started

Ready to build your SAP extension the clean-core way?

Tell us about the process gap or extension requirement, field operations, finance workflow, supplier portal, or AI-powered document processing, and BCS will scope a BTP programme that delivers it without touching the S/4HANA core.