Below table contains a list of technical checks after system update/migration to SAP S/4HANA. These activities are mandatory to validate the update/installation is technically consistent and S/4HANA conversion is successful from a technical point of view.

Activity Details Expected Outcome
Component Version Check Select System → Status Check Component Information Update successfully completed. Component S4CORE should be available.
License Check Execute TA SLICENSE SAP License should be valid
System Change Options Execute TA SE06 Update as before the migration
Client Change Options Execute TA SCC4 Update as before the migration
System Consistency Check Execute TA SM28 or SICK to perform a system consistency check User can see the entry SAP System Check
Database Consistency Check Execute TA DB02 to perform a database consistency check User can see the missing tables or indexes
Server Check Execute TA SM51 and check if all Instances are active and running Status is active
Check RFC Destinations Check the RFC destinations for relevant systems: Execute TA SM59 → choose relevant RFC-destinations  → Utilities → Test → Authorization Test Target systems are successfully reached
RFC Server Groups Execute TA RZ12 Correct assignment of instances to RFC server groups
Operation Mode Switch Execute TA RZ03 → Choose operation mode → choose Operation mode switches are set as before the migration
Internet Communication Manager (ICM) Checks Execute TA SMICM, check number of threads and then select Goto → Services HTTP(s) services are configured correctly
Internet Communication Framework Check Execute TA SICF ICF Services are activated
Partner Profile Check Execute TA WE20 For all partner profiles, check the classification tab and confirm if it’s correct
IDoc Port Checks Execute TA WE21 Check RFC destinations and logical file paths for IDoc ports

Technical (Basis) team would be responsible for all listed activities above.

For more details and further reading: SAP Best Practices for system conversion for SAP S/4HANA.

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