Learn the basics of the purchasing process in SAP ERP. This book, illustrated with numerous SAP screenshots, guides you through all the important sub-steps of the main process in Material Management (MM): you start with the fundamental settings in the vendor master data and look at the purchase requisition all the way to the purchase order. Building on this foundation, you will follow the corresponding goods receipt and all necessary actions in the subsequent invoice verification. The author aims to serve as a guide for the interplay of these individual process steps. The second edition has been expanded particularly with regard to the release process and the credit memo procedure. You will also find extensive tips and tricks to make daily work easier, as well as a detailed description of the purchasing info record.