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SAP BW/4HANA is SAP’s next generation data warehouse solution. It is a new product (not a legal successor of any existing SAP Business Warehouse solution), built entirely on one of the most advanced in-memory platforms today – SAP HANA. It provides a simple set of objects that is well suited for modelling an agile and flexible layered architecture of a modern data warehouse.

Converting the system to BW/4HANA is not a simple task.

For planning the conversion of your SAP BW system to SAP BW/4HANA have a look at 3061594 (SV-SCS-S4R) 

From SAP BW perspective the following notes should be considered concerning the XML file and report "Z_SAP_BW_NOTE_ANALYZER" 

  1. Without Custom Code Compatibility Check
    • Please follow section Guided Installation of SAP Note 2575059 which explains how to use the SAP Note Analyzer tool with the XML file for SAP Readiness Check (attached to 2575059).
  1. With Custom Code Compatibility Check
    • Please follow section 2.2.3.3 SAP BW Note Analyzer of SAP Note 2383530 which explains how to use the SAP Note Analyzer tool with the XML file for the Pre-Checks "SAP_BW4HANA_Pre_Checks_<Date>.xml(attached to 2383530).
      How to use Code-Scan-Tool is described in note 3119274 (report RS_B4HANA_LOG_DISPLAY)

SAP provides three paths for the conversion from SAP BW to SAP BW/4HANA:

  •  In-place Conversion (component BW-B4H-CNV-IPL)
  •  Remote Conversion (component BW-B4H-CNV-RMT or CA-LT-BW4)
  • Shell Conversion ((component BW-B4H-CNV-SHL)

SAP Online Documentation

*Important SAP Notes
  • 2383530 - Conversion from SAP BW to SAP BW/4HANA (Conversion Guide PDF inside)  — This is the Master Note for all conversions to BW/4HANA
    This note also includes XML files for report  Z_SAP_BW_NOTE_ANALYZER.
  • 2421930 - “Simplification List for SAP BW/4HANA”
  • 2347382 - SAP BW/4HANA – General Information (Installation, SAP HANA, security corrections…)
  • 1729988 - SAP BW powered by SAP HANA and SAP BW/4HANA - Checklist Tool
  • 3061594 - SAP Readiness Check for SAP BW/4HANA

SAP Note 2347382 describes general information about and prerequisites for SAP BW/4HANA whereas SAP Note 2383530  contains systematic instructions, on how to prepare your system for a conversion. Note 2421930 contains specific information on conversion of individual object types. 

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