Provides tutorials for the custom development of your SAP system. Covers validations and substitutions, user exits, BTEs, BAdIs, and implicit enhancements Includes discussions on report development, accounting document processing, workflows, and more. With this book, you learn how to create custom enhancements to standard ABAP code in Financial Accounting for SAP, which will allow you to address all corporate and/or country-specific business rules. The author takes a systematic approach to the topic, introducing general information about the subject of enhancements, and then offering specific coding tutorials consisting of step-by-step instructions and screenshots. Thanks to clear and concise instructions as well as numerous tips and tricks, you'll quickly learn how to find the appropriate enhancement for a particular problem, use all available data, and avoid common programming errors. Enhancing the Standard System; Learn what functionalities are available for enhancing the standard system, and how to choose the right one. Corporate and/or Country-Specific Business Rules; Explore the process of creating enhancements that will enable you to adhere to specific corporate and/or country-specific business rules. Interfacing with Third Parties Understand your options for custom enhancements that relate to exchanging data with external systems (banks, vendors, and customers). BTEs and BAdIs; Learn how business transaction events and business add-ins can be used to enhance standard Financial Accounting functionality. Practical, Systematic Approach; Benefit from detailed explanations and a systematic approach that will teach you how to develop custom ABAP programs to modify the SAP standard.