The authors of »Upgrading SAP«

Mark Mergaerts

Photo of Mark Mergaerts
Mark Mergaerts is a principal technical consultant working for Logos Consulting, a Belgian consulting company that focuses exclusively on SAP technology (BC). 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. He is the co-author with Bert Vanstechelman of the SAP OS/DB Migration Project Guide and mySAP ERP Upgrade Project Guide and of the SAP NetWeaver Application Server Upgrade Guide, the first edition of the present book.

Bert Vanstechelman

Photo of Bert Vanstechelman
Bert Vanstechelman is founder of and principal technical consultant at Logos Consulting, and has more than 20 years of experience in SAP Basis consulting, running all kinds of SAP versions in combination with all possible databases and operating systems supported by SAP. He specializes in platform migrations, SAP release upgrades, and Unicode conversions. Bert is a member of the board of advisors of the SAP Professional Journal. He is also the co-author with Mark Mergaerts of the following SAP PRESS books: the SAP OS/DB Migration Project Guide, the mySAP ERP Upgrade Project Guide, and the SAP NetWeaver Application Server Upgrade Guide. Bert lives near Bruges, Belgium, and is married with three children. Bert can be reached at
Print edition E-book Bundle

Current titles

  • Cover of Software Update Manager (SAP SUM): Setup and Functionality

    Software Update Manager (SAP SUM): Setup and Functionality

    Mark Mergaerts, Bert Vanstechelman

    50 pages

    Upgrading to SAP S/4HANA or implementing the latest Enhancement Pack? In this E-Bite, get a start-to-finish look at the Software Update Manager (SUM) to help you manage your upgrades! First, download the software and SAP Notes, and then run through More about the book



    • Get step-by-step instructions on installing SUM and key SAP Notes
    • Plan disk space, extract the SUM archive, and set up SUM
    • Navigate the SUM GUI and understand its functionality and special features
  • Cover of SAP S/4HANA System Conversion Guide

    SAP S/4HANA System Conversion Guide

    Mark Mergaerts, Bert Vanstechelman

    537 pages, hardcover

    If you’re 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, you’ll get step-by-step instructions for More about the book

    from $79.99


    E-book | Print edition | Bundle
    • Plan and prepare for the migration from SAP ERP to SAP S/4HANA
    • Walk through the complete technical conversion process and adapt custom code and business functions for SAP S/4HANA
    • Learn about essential functional conversion steps for finance, logistics, and more