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BW (SAP Business Warehouse)

All About Idocs: Communication Between BW and R/3

Data acquisition from an SAP source system is a very common scenario in SAP BW. This process involves extracting the data using either standard business content-provided extractors or custom-built extractors. Data extraction from an SAP R/3 source system to BW begins when BW sends a request in the form of a request IDoc. The source system then extracts the data and sends it to the BW system. During this activity of data transfer, the two systems exchange additional information from time to time in the form of info IDocs. These info IDocs also transfer the information about the extracted data, such as data source details, data package number, and number of records

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