R/3 is a business system that has gained global prominence. However, the SAP R/3 has 237,000 function modules. Quite often programmers are unaware that a module exists which can be of help in their programs. This convenient resource is a collection of the most common ABAP modules, demonstrated within simple programs. These programs for easily searchable examples can be accessed from http://extras.springer.com/978-1-85233-775-9 The modules in this book are organised for quick reference. This concise reference contains: A full explanation of the layout of reference entries; a brief introduction to SAP; coverage of conversion and date and time modules; file and directory modules; list, long texts, and number modules; useful integration modules for MSOffice and pop-up dialog box management. This book organises over 300 modules, many of which are undocumented in text, and arranges them for quick and easy reference, and explains when and where to use the most common SAP R/3 ABAP function modules.