Sunday, December 2, 2018

BW/4HANA Simplifications (BW4SL)

One of strengths of BW for HANA aka BW/4HANA (BW/4, B4H, BW4) is simplification. This comes as something that can’t be seen (e.g. removal of approx. more than 5 million lines of ABAP SAP BW code) and also more visible changes that need to be adapted otherwise it will break BW systems once moved to BW/4 e.g.:

- changes to official interfaces (RSNDI, RSDRI)
- deletion of old/obsolete customer exits (CMOD) and BAdI methods for exit variables that are replaced by corresponding enhancement spots
- switch to new request management for all loading processes
- SAP HANA generated views are Calculation Views only (so called OneView model)

To get an overview of all “simplifications” that BW/4 comes with there see so called BW4SL notes available on SAP support site. At the time of writing this blog there were 66 SAP Notes like that. Each of the Note is dealing with particular BW functionality that was changed/simplified. Change is described also with possibilities how to dealt with it - like how to migrate/convert/adjust particular object. Below few examples of the Notes: 

2444718 - BW4SL - MultiProviders
2443489 - BW4SL – InfoCubes
2479567 - BW4SL - Transformations

Central Note has number 2421930. All changes are also described in one central PDF document called Simplification List for SAP BW/4HANA. SAP offers also interactive web page that provides a description of all changes having an impact when converting from SAP BW to SAP BW/4HANA called Simplification Item Catalog (SIC).


More information:
Simplification Item Catalog (SIC) -> launchpad.support.sap.com/#/sic
2421930 - Simplification List for SAP BW/4HANA
BW-B4H-CNV – SAP support site component

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