Technical Checks After System Conversion to S/4 HANA

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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.