Paweł Grześkowiak has been passionate about programming from his early years, and since 2012 he has been a SAP technical consultant—mainly in the ABAP area. He has expertise in boosting implementations in the rail transport industry, the chemical industry, media, government administration, the wood industry, and banking. Currently, he designs extensions to SAP S4/HANA systems in ABAP and Java. He is an active member of the SAP community and a three-time SAP Inside Track conference organizer.
I would like to thank all my colleagues from Capgemini who helped make this book better: Krzysztof Bulanowski, Daniel Iwanowski, Bogdan Brzozowski, Mateusz Skadorwa, Marcin Maciejewski, Piotr Roszak, and Marcin Bielecki. Special thanks to Anna Wilk for checking all the examples carefully and for her brilliant review. Last but not least, many thanks to my Capgemini mentor, Paweł Gaura, for his support in my career and development.
Wojciech Ciesielski graduated from the Wroclaw University of Technology with an Engineering degree in Automation and Robotics, and he has a master's degree in Management in WSB Universities. Since then, he has been tightly connected with the SAP environment, working as an ABAP consultant. He has several years of business background in ABAP development and the use of modern technologies in business. He is experienced in working with ERP and CRM systems and integrating them with third-party solutions—from single companies to multinational corporations. He is a co-creator of innovative solutions delivered to the wide international audience of SAP events. He is currently focused on new technologies and solutions in the SAP portfolio: SAP Cloud Platform, Internet of Things, and artificial intelligence; but he is also increasing his expertise indevelopment with other languages.
Wojciech Ćwik has been a certified ABAP consultant for several years, with a specialty in mobile solutions, especially in creating interfaces between SAP and frontend solutions from Fiori and third-party platforms; he also enjoys creating architectures in SAP ERP ecosystems. He is a co-originator of an unconventional system linking new solutions from the SAP portfolio such as IoT, SAP Cloud, and SAP blockchain services.
Dariusz Pacynko graduated from Wroclaw University of Technology with an MSc degree in Optical Engineering. Since then, he has been tightly connected with the SAP environment, working as an ABAP consultant. He has multiple certifications, such as ABAP with SAP Netweaver 7.40 Development Associate, and several years of business background including experience with ABAP development, OData services, and SAPUI5 applications. He is experienced in working with ERP and CRM systems, integrating them with third-party solutions, and opening them to the mobile philosophy. He is a co-creator of innovative solutions delivered to the wide international audience of SAP events. He is currently focused on the new technologies and solutions in the SAP portfolio, such as SAP Cloud and IoT, but he is also increasing his expertise in Fiori development.
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