© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
R. S. SubrahmanyamSAP S/4HANA Conversionhttps://doi.org/10.1007/978-1-4842-8091-1_8

8. Realization Phase (Preparation and Migration of Customizing)

Ravi Surya Subrahmanyam1  
Hyderabad, India

After the preparation phase, consultants start working with the SUM (Software Update Manager) tool. This tool is used to convert the system to SAP S/4HANA. Consultants might have executed the Maintenance Planner before the SUM. The SUM tool requires the stack.xml file that’s generated by the Maintenance Planner as an input.

The Role of the Software Update Manager (SUM) Tool

SUM does the following:
  • Database migration

  • Installation of the SAP S/4HANA software

  • Logistics data ...

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