License Administration with Transaction
SLICENSE
You can use transaction SLICENSE to administer the license keys of the old and the new types (more information: SAP License Key).

If you have not installed a license key yet, you can log on as the sap* user or work with the temporary license key that is installed automatically when you install or upgrade your system.
SAP* can delete digitally-signed license keys (more information: SAP Note 917936).
You are logged onto the SAP System and are authorized to use this transaction (authorization object S_ADMI_FCD=SLIC).
You can use this transaction to
● Display all installed license keys (initial screen; the currently-active installed license key is highlighted)
● Install a new permanent or a temporary license key
● Delete an installed license key
● Determine the hardware key for any host in the system (Determining Hardware Keys)
In the SAP menu choose Administration → System Administration → Administration → SAP Licenses or enter the transaction code SLICENSE.