Book excerpt: With the conversion from SAP ERP to SAP S/4HANA, the concept of classic customers and vendors is a thing of the past. SAP Business Partner is now the leading object for processing master data information for customers and vendors. Transactions such as FD01/FK01, FD02/FK02 and XK01/XK02 are automatically redirected to the leading transaction BP. In this practical guide, learn step by step how to work with SAP Business Partner, including primary customization settings, and the creation of an SAP business partner with single and grouped roles. Specialized topics such as search help, field attributes, and authorizations are also covered. A comparison of greenfield and brownfield approaches is an essential aspect of this book. For readers who want, or need, to migrate their current data, guidance is provided on business partner conversion types. This guide pays special attention to master data synchronization via the CVI Cockpit, including the assignment of number ranges and intervals. - The SAP Business Partner concept - SAP Business Partner integration in SAP ERP and SAP S/4HANA - SAP Business Partner synchronization and Customer-Vendor Integration (CVI) - Overview of customization settings and master data maintenance