If youre performing a brownfield migration from an existing SAP ERP system, this is the technical guide for you! From planning the project and preparing your system to adjusting custom code and executing the conversion, youll get step-by-step instructions for all stages of your implementation. Troubleshooting tips and extensive coverage of the functional conversion will help you ensure that all your data makes it where it needs to be. The time to move to SAP S/4HANA is here!Highlights include:1) Brownfield implementation2) Readiness checks3) Simplification list4) Project planning5) Conversion roadmap6) Software Update Manager (SUM)7) Preprocessing, execution, and postprocessing8) Modification adjustment9) Custom code migration10) Functional conversion11) Troubleshooting

Mark Mergaerts is a principal technical consultant working for Logos Consulting, a Belgian consulting company that focuses exclusively on SAP technology. Before that, he worked for SAP Belgium between 1995 and 2011, giving him almost 20 years of SAP BC experience. His activities concentrate on system administration, database management, performance, upgrades (he has been upgrading SAP since the days of release 2.1), and platform and Unicode migrations.

... Who Is This Book For? ... 21 ... How This Book Is Organized ... 22 ... Terminology ... 23 ... Conclusion ... 23 1.1 ... New Possibilities, Features, and Functionality ... 25 1.2 ... SAP S/4HANA in the Cloud versus On-Premise ... 27 1.3 ... New Implementation, System Conversion, and Transformation Scenarios ... 29 1.4 ... Simplification ... 38 1.5 ... Conversion Methodology ... 44 1.6 ... SAP S/4HANA Transformation Enablers ... 54 1.7 ... Summary ... 61 2.1 ... SAP S/4HANA Architecture ... 63 2.2 ... SAP S/4HANA and SAP Fiori ... 72 2.3 ... SAP Solution Manager and SAP S/4HANA ... 75 2.4 ... Maintenance Planner ... 78 2.5 ... SAP Readiness Check ... 83 2.6 ... Simplification Item Check ... 95 2.7 ... Sizing for SAP HANA ... 105 2.8 ... Software Update Manager ... 108 2.9 ... Database- and Operating System-Specific Aspects ... 121 2.10 ... Upgrading the Frontend Software ... 125 2.11 ... SAP Landscape during Conversion ... 128 2.12 ... Summary ... 135 3.1 ... Why Convert to SAP S/4HANA? ... 137 3.2 ... Factors Influencing Conversion Complexity ... 140 3.3 ... Estimating the Effort ... 153 3.4 ... Project Team ... 162 3.5 ... Conversion Project Steps ... 168 3.6 ... Conversion Plan ... 171 3.7 ... Testing Phase ... 184 3.8 ... Summary ... 191 4.1 ... Introducing the Tools: SUM and DMO ... 194 4.2 ... Conversion Documentation ... 195 4.3 ... Conversion Software ... 205 4.4 ... Maintenance Planner ... 209 4.5 ... Preparations in the SAP ERP System ... 224 4.6 ... Final Preparations ... 232 4.7 ... Preparing SUM ... 238 4.8 ... Summary ... 248 5.1 ... Planning the Conversion ... 249 5.2 ... Starting the Conversion with SUM ... 257 5.3 ... Roadmap Step: Extraction ... 263 5.4 ... Roadmap Step: Configuration ... 266 5.5 ... Roadmap Step: Checks ... 282 5.6 ... Roadmap Step: Preprocessing ... 285 5.7 ... Preparing for Downtime ... 302 5.8 ... Final Preprocessing Steps ... 306 5.9 ... Roadmap Step: Execution ... 308 5.10 ... Roadmap Step: Postprocessing ... 316 5.11 ... SUM Special Features ... 322 5.12 ... Postconversion Activities ... 328 5.13 ... Post Go-Live ... 351 5.14 ... Troubleshooting ... 354 5.15 ... Summary ... 358 6.1 ... Modification Adjustment Transactions ... 362 6.2 ... Preparing and Running Transaction SPDD ... 363 6.3 ... Transaction SPDD Object List ... 370 6.4 ... Transaction SPDD Transport Request ... 372 6.5 ... Adjusting Objects ... 373 6.6 ... Final Steps ... 385 6.7 ... Transaction SPAU ... 386 6.8 ... Transaction SPAU_ENH ... 389 6.9 ... Summary ... 391 7.1 ... Custom Code Management Process ... 395 7.2 ... Impact of SAP HANA ... 397 7.3 ... Impact of Simplification ... 399 7.4 ... Enabling the ABAP Test Cockpit ... 404 7.5 ... Custom Code Analysis in the Preparation Phase ... 413 7.6 ... Custom Code Adaptation after the Conversion ... 430 7.7 ... Custom Code Adaptation as an Ongoing Process ... 436 7.8 ... Summary ... 441 8.1 ... Business Partners ... 444 8.2 ... Financials and Accounting ... 458 8.3 ... Credit Management ... 474 8.4 ... International Trade and Trade Finance ... 485 8.5 ... Logistics ... 490 8.6 ... Sales and Distribution ... 502 8.7 ... SAP Business Warehouse ... 504 8.8 ... Cleaning Up Obsolete Data after the Conversion ... 506 8.9 ... Summary ... 509 A.1 ... SAP Notes ... 512 A.2 ... SAP Installation and Documentation Manuals ... 520 A.3 ... SAP Service Marketplace ... 521 A.4 ... Other Online Resources ... 521 ... The Contributors ... 524