Before starting the Software Update Manager (SUM) for an AS ABAP-based SAP system with the role
"Quality Assurance System," SAP recommends following the instructions from the central note for SUM (C) relevant to the version being used. This central note contains critical information, including prerequisites, specific steps, and known issues that should be addressed before the update. Additionally, applying the latest SAP Host Agent patch (D) is advisable to ensure that the host agent, which facilitates communication and operational tasks on the SAP host, is up-to-date with the latest fixes and enhancements. Executing SGEN for invalid loads (A) and importing modification adjustment transports from the development system (B) are important steps, but they are typically performed after the SUM process has been initiated.