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.
|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.