Clean Core for SAP

Extensibility and Upgrade Stability for SAP S/4HANA
1. Auflage 2026
ISBN: 978-1-4932-2848-5
Verlag: Rheinwerk Verlag GmbH

Buch, Englisch, 429 Seiten, Format (B × H): 178 mm x 254 mm

Looking to understand the reality behind the “clean core”? Start by understanding the fundamentals of this approach, from standardized extensions and integrations through data management and operations. Then dive into creating custom extensions, following expert guidance each step of the way. With tips for using key tools like SAP Build and the ABAP Test Cockpit, implementing governance, and addressing existing technical debt, this is your all-in-one resource for adopting SAP’s clean core strategy!

Highlights include:

1)Process standardization

2)Extensions

3)Integration

4)Data management

5)Operations

6)Custom development

7)Programming methodologies

8)SAP Build

9)ABAP Test Cockpit

10)Governance

Autoren/Hrsg.

Banda, Smitha

Krishnamoorthy, Vani

Inhaltsverzeichnis

  Preface ... 15

       Who This Book Is For ... 15

       How to Read This Book ... 15

       Acknowledgments ... 17

I  Foundations of Clean Core ... 19

  1.  What Is Clean Core? ... 21

       1.1 ... Architectural Shift: From Custom Core to Clean Core ... 22

       1.2 ... Principles and Execution ... 27

       1.3 ... Clean Core: Common Misconceptions ... 35

       1.4 ... Summary ... 39

  2.  Process Dimension ... 41

       2.1 ... Defining a Clean Process ... 41

       2.2 ... Balancing Standards and Innovation via Business Process Management ... 43

       2.3 ... Fit to Standard as the Anchor ... 50

       2.4 ... Tools for Fit to Standard and Process Discovery and Design ... 55

       2.5 ... Summary ... 59

  3.  Extending the Core with Innovation ... 61

       3.1 ... Why Clean Extensions Promote Innovation ... 62

       3.2 ... Clean Core Extension Levels ... 66

       3.3 ... Extension Types ... 83

       3.4 ... SAP Application Extension Methodology ... 85

       3.5 ... Summary ... 87

  4.  Connecting the Core Through Integrations ... 89

       4.1 ... Defining Clean Integrations ... 90

       4.2 ... Path to a Clean Core ... 91

       4.3 ... SAP Integration Solution Advisory Methodology ... 96

       4.4 ... Integration Domains, Integration Styles, and Use Case Patterns ... 99

       4.5 ... Tools and Platforms ... 105

       4.6 ... Integration Governance ... 110

       4.7 ... Summary ... 114

  5.  Data at the Core ... 115

       5.1 ... Defining Clean Data ... 116

       5.2 ... Path to Clean Data ... 118

       5.3 ... Tools and Technologies ... 127

       5.4 ... Summary ... 133

  6.  Operating the Core ... 135

       6.1 ... The Foundation That Makes the Clean Core Real ... 136

       6.2 ... What Clean Operations Encompasses ... 137

       6.3 ... Tools and Enablers ... 150

       6.4 ... Summary ... 152

II  Building Clean Extensions ... 155

  7.  Extensibility Models ... 157

       7.1 ... On-Stack Extensions ... 159

       7.2 ... Side-by-Side Extensions ... 179

       7.3 ... Hybrid Extensions ... 187

       7.4 ... Summary ... 190

  8.  Extension Patterns and Architecture ... 193

       8.1 ... The Requirement Triage ... 194

       8.2 ... Extending Reports ... 195

       8.3 ... User Interface Extensions ... 206

       8.4 ... Extending the Data Model ... 214

       8.5 ... Business Logic Extensions ... 225

       8.6 ... Extending Outputs ... 234

       8.7 ... Extending Process Flows ... 238

       8.8 ... Building Custom Applications ... 242

       8.9 ... Summary ... 243

  9.  Programming Methodologies ... 245

       9.1 ... SAP Application Extension Methodology ... 246

       9.2 ... SAP Cloud Application Programming Model ... 260

       9.3 ... ABAP RESTful Application Programming Model ... 274

       9.4 ... ABAP Cloud ... 297

       9.5 ... Summary ... 316

10.  Development Tools ... 319

       10.1 ... The Landscape: SAP Build and Joule ... 320

       10.2 ... Joule Studio ... 324

       10.3 ... Intent-Driven Development ... 327

       10.4 ... Powering Intent with Business Context ... 333

       10.5 ... Trusted Governance and the Managed Runtime ... 334

       10.6 ... Side-by-Side Extensibility as the Default ... 335

       10.7 ... Availability, Adoption, and the Commercial Model ... 336

       10.8 ... Summary ... 338

11.  ABAP Test Cockpit ... 339

       11.1 ... ABAP Test Cockpit as a Governance Control ... 341

       11.2 ... ABAP Test Cockpit in the SAP BTP ABAP Environment ... 344

       11.3 ... ABAP Test Cockpit in SAP S/4HANA ... 347

       11.4 ... Custom ABAP Test Cockpit Checks ... 351

       11.5 ... Summary ... 354

III  Clean Core Journey ... 357

12.  Mindset ... 359

       12.1 ... Guidelines ... 359

       12.2 ... Extending the Mindset to Implementation Partners ... 363

       12.3 ... Summary ... 364

13.  Clean Core in a Greenfield vs. Brownfield Implementation ... 365

       13.1 ... Greenfield ... 366

       13.2 ... Brownfield and Bluefield ... 367

       13.3 ... Technical Debt ... 371

       13.4 ... From Principles to Practice ... 376

       13.5 ... Summary ... 379

14.  RISE with SAP ... 381

       14.1 ... RISE with SAP Methodology ... 381

       14.2 ... Solution Standardization Board ... 387

       14.3 ... Governance in Operation ... 391

       14.4 ... Summary ... 398

15.  Clean Core Governance and Maturity Framework ... 399

       15.1 ... Clean Core Governance and Maturity Framework ... 399

       15.2 ... TnX Manufacturing: Practical Example ... 411

       15.3 ... Summary ... 419

  The Authors ... 421

  Index ... 423

Über Autor(innen)

Banda, Smitha
Smitha Banda is a senior business development manager at SAP and the head of the SAP BTP practice for North America. She started her journey at SAP in 2005 as a consultant providing advisory, architecture, and development services to customers around the globe. She has always worked closely with customers and continues to do so in her current role. She has been instrumental in building the SAP BTP practice within SAP across all regions. She works closely with the go-to-market and partner enablement teams to build services and programs to support customers’ SAP BTP needs. She and her team of SAP BTP experts, architects, developers, and consultants are involved in end-to-end SAP BTP implementations.

Krishnamoorthy, Vani
Vani Krishnamoorthy is a chief architect at SAP with more than two decades of experience. She supports customers in designing and developing extensions for multiple SAP products and was part of the team that originally defined SAP’s clean core concept and its dimensions. She combines deep technical expertise with strategic insight and has led numerous clean core information days and deep-dive sessions for global customers, helping IT leaders and developers understand how to apply extensibility best practices.