Introduction

17

Who This Book Is For

18

Structure of This Book

19

1 SAP S/4HANA—Requirements and Benefits

25

1.1 Future Business Challenges

26

1.1.1 Digitization of Business Processes

27

1.1.2 Trends of the Digital Transformation

30

1.2 The Pledge of SAP S/4HANA

37

1.2.1 Simplification of the Functionality

37

1.2.2 Simplification of the Data Structure

40

1.2.3 Simplified User Interfaces

43

1.2.4 Simplified Analyses

45

1.3 Business Functions in SAP S/4HANA

46

1.3.1 Accounting

47

1.3.2 Logistics

52

1.3.3 Human Resources

57

1.3.4 Procurement

64

1.3.5 Marketing

68

2 SAP S/4HANA versus the Traditional SAP Business Suite

75

2.1 Comparing the Available Solutions: SAP S/4HANA and the Digital Core

75

2.2 Simplification

79

2.3 The New Data Model and the SAP HANA Database

81

2.3.1 SAP HANA

83

2.3.2 The Data Model

84

2.3.3 Handling Existing Data

87

2.3.4 Sizing

87

2.4 SAP Fiori User Interfaces

88

2.4.1 Technological Changes

90

2.4.2 Operating Concept

91

2.5 Interfaces

95

2.6 SAP S/4HANA Embedded Analytics

96

3 Cloud, On-Premise, and Hybrid Scenarios

99

3.1 Overview of Operating Models

100

3.1.1 On-Premise Operating Model

100

3.1.2 Cloud Operating Model

100

3.1.3 Hybrid Operating Model

103

3.2 The SAP S/4HANA Product Family

104

3.2.1 SAP S/4HANA, On-Premise

105

3.2.2 SAP S/4HANA Cloud

109

3.2.3 SAP HANA Enterprise Cloud

113

3.3 Comparing the Operating Models

115

3.3.1 Hardware, Software, Operation, and Maintenance

115

3.3.2 User Interfaces

117

3.3.3 Functional Scope and Supported Country Versions

118

3.3.4 Options for Enhancement

120

3.3.5 Payment Model and Runtime

120

3.3.6 Model for Migration to SAP S/4HANA

121

3.4 Extensibility in SAP S/4HANA

122

3.4.1 Side-by-Side Enhancements

124

3.4.2 In-App Enhancements

126

3.4.3 Checking Custom Enhancements When Migrating to SAP S/4HANA

132

4 Preparing the Migration to SAP S/4HANA

133

4.1 Basic Considerations

133

4.2 The Three Migration Scenarios

139

4.2.1 New Implementation of SAP S/4HANA

140

4.2.2 System Conversion to SAP S/4HANA

146

4.2.3 Landscape Transformation with SAP S/4HANA

153

5 SAP Activate

157

5.1 SAP Activate Content

158

5.1.1 SAP Best Practices

160

5.1.2 Guided Configuration

165

5.1.3 SAP Activate Methodology

173

5.2 SAP Activate Phases

174

6 Trial Systems and Model Company

179

6.1 Trial System in the SAP Cloud Appliance Library

179

6.2 SAP S/4HANA Fully-Activated Appliance

182

6.3 Solution Scope of the Model System

185

6.4 Enterprise Structure of the Model Company

188

7 Migrating to the Public Cloud

193

7.1 Setting Up SAP S/4HANA Cloud

193

7.1.1 Discover Phase: Configuring the SAP S/4HANA Cloud Trial System

194

7.1.2 Explore Phase: Configuring the SAP S/4HANA Cloud Starter System

195

7.1.3 Realize Phase: Configuring the SAP S/4HANA Cloud Quality Assurance System

204

7.1.4 Deploy Phase: Configuring the SAP S/4HANA Cloud Production Systems

208

7.2 Configuring SAP S/4HANA Cloud

210

7.3 Migrating Data to SAP S/4HANA Cloud

213

7.3.1 Available Migration Objects

214

7.3.2 Data Migration Using the SAP S/4HANA Migration Cockpit

216

8 Integrating SAP S/4HANA Cloud into the System Landscape

241

8.1 Integration with SAP Ariba Solutions

241

8.1.1 Integration Scenarios in Procurement and Accounts Payable

242

8.1.2 License Prerequisites and Provision of SAP Ariba System Accesses

249

8.1.3 Executing an Integration Project with SAP Activate

249

8.1.4 Integration Settings in SAP S/4HANA Cloud

252

8.1.5 Configuration in SAP Ariba

266

8.1.6 Testing the Integrated Business Processes and Going Live

272

8.1.7 Outlook

273

8.2 Integration with SAP SuccessFactors

274

8.2.1 Configuration in SAP S/4HANA Cloud

279

8.2.2 Configuration in SAP Cloud Platform Integration

282

8.2.3 Configuration in SAP SuccessFactors Employee Central

283

8.3 Integration with SAP Hybris Marketing Cloud

284

8.3.1 SAP Hybris Marketing Cloud Data Model

289

8.3.2 Integration with SAP ERP Systems

291

8.3.3 Importing Data from External Systems

296

8.3.4 Importing Data from Social Media

302

8.3.5 Integration of SAP Hybris Cloud for Customer Systems

306

9 Installing and Configuring SAP S/4HANA OnPremise or in the Private Cloud

311

9.1 Installation

313

9.2 System Configuration

318

9.3 Setting Up the Frontend Server for SAP Fiori User Interfaces

322

9.3.1 On-Premise Installation of the Frontend Server

324

9.3.2 SAP Fiori Cloud

325

10 System Conversion

329

10.1 Overview of the System Conversion Project

329

10.1.1 System Conversion Process

332

10.1.2 System Group Conversion

334

10.2 Converting Single Systems

337

10.2.1 System Requirements

338

10.2.2 Simplification List

340

10.2.3 Maintenance Planner

344

10.2.4 Prechecks

346

10.2.5 Adapting Custom Developments

348

10.2.6 Database Sizing for SAP S/4HANA

362

10.2.7 Using Software Update Manager

363

10.2.8 Migrating to SAP Fiori User Interfaces

370

11 New Implementation of Single Systems

377

11.1 Data Migration Phases

378

11.1.1 Data Analysis

380

11.1.2 Mapping

382

11.1.3 Implementation

383

11.1.4 Testing

384

11.1.5 Data Validation

384

11.1.6 Data Cleansing

386

11.1.7 Productive Load and Support

386

11.2 Supported Migration Objects

387

11.3 Rapid Data Migration

390

11.3.1 Tools

390

11.3.2 Architecture

392

11.3.3 Migration Content

396

11.3.4 Connecting to Source Systems

405

11.3.5 Data Profiling

408

11.3.6 Field Mapping

411

11.3.7 Value Mapping and Conversion Tables

419

11.3.8 Data Validation

426

11.3.9 Importing Data

430

11.3.10 Monitoring

432

11.3.11 Optimizing IDoc Performance

434

11.4 SAP S/4HANA Migration Cockpit

437

11.5 SAP S/4HANA Migration Object Modeler

441

11.5.1 Edit Source Structures

445

11.5.2 Display Target Structures

448

11.5.3 Display Structure Mapping

449

11.5.4 Edit Field Mapping

450

11.5.5 Technical Functions

451

11.5.6 Advanced Activities

452

11.6 Comparison of Migration Tools

453

12 Landscape Transformation

457

12.1 The Three Transformation Scenarios

458

12.2 Carrying Out a Transformation Project

459

12.2.1 Preanalysis and Planning

462

12.2.2 Blueprint and Project Team

462

12.2.3 Test Runs

464

12.2.4 Production Conversion

466

12.2.5 Support after Go-Live

467

12.3 System Consolidation

467

12.4 Company Code Transfer

476

12.5 Transformation to Central Finance

482

12.5.1 Implementing SAP S/4HANA Central Finance

483

12.5.2 Global Parameters

487

12.5.3 Master Data

493

12.5.4 Mapping, Error Handling, and Initial Data Load

498

13 Integrating SAP S/4HANA, On-Premise, into the System Landscape

503

13.1 Integration with SAP Ariba Solutions

503

13.1.1 Integrated Business Processes with SAP Ariba Solutions and SAP S/4HANA

503

13.1.2 Technical Integration of SAP S/4HANA with SAP Ariba

506

13.2 Integration with SAP ERP HCM and SAP SuccessFactors

509

13.2.1 ALE Integration with SAP ERP HCM

510

13.2.2 Integration of SAP ERP HCM within the SAP S/4HANA Instance

511

13.2.3 Integration with SAP SuccessFactors Employee Central

513

13.2.4 Synchronizing Employee Data with Business Partners

519

13.3 Integration with Existing SAP Systems

521

14 Selecting Your Migration Scenario

527

14.1 Overview of Procedures and Input Helps

527

14.2 Creating Your Own Roadmap

530

14.2.1 Initial Scenario: Single System

534

14.2.2 Initial Scenario: Decentralized System Landscape

539

14.2.3 Sample Roadmaps

542

14.3 The Most Important Criteria for Your Decision

546

14.4 Conclusion

549