This document provides an overview of extracting data from S/4HANA into BW/4HANA. It discusses the architecture and available options for both S/4HANA on-premise and cloud deployments. For on-premise, the main options are using S-API extractors, ABAP CDS views, or table replication. For cloud, ABAP CDS views can be used along with the SAP communication scenario for connectivity. The document also provides an overview of available SAP delivered content for extraction and considerations for monitoring data loads. Frequently asked questions about CDS view based extraction are also addressed.