Book excerpt: Invoice verification is an important business process in almost every company. In SAP you can verify invoices against purchase orders and goods receipts. SAP provides important functionalities like automatic account determination, financial posting, etc. SAP is powerful software that can meet the needs of any business scenario for any type of business in any part of the world. Its all encompassing nature makes SAP complex. In order to derive maximum benefit for business, SAP must be understood well. Mr. Agrawal attempts to explain SAP completely; a seemingly impossible task. This is his third book on the Materials Management module; his first two books in the Materials Management module are ‘Purchasing’ and ‘Inventory Management’. In this book, like in his earlier books, he explains every screen of SAP MM Invoice Verification. Both the SAP Menu and Customizing Implementation Guide are expanded and the chapter number where they are covered is indicated. This not only creates a direct link between the book and the SAP software, but also ensures that the book is comprehensive. The author has taken care to balance details with overviews that explain linkages between concepts. The book is organized in chapters that are important business activities. Each chapter covers business processes carried out in SAP by the user as well as its related configuration. This book can be used to learn SAP from scratch; it is a learning guide. It is, therefore, useful to persons who are training to be SAP Consultants. Having learnt SAP with the help of this book, the Consultant keeps returning to refer to it. In implementation of SAP, Consultants prepare User Manual. With the availability of this book, their task becomes simpler. In the User Manual, they need to cover only implementation specific points. The user refers to this book as a generic User Manual. As the user gains knowledge he also begins to understand the customizing settings for his implementation. This book can also be used by Business Process Owners and Senior Managers to get an overview of SAP and the important choices it offers.