Notes On Deleting License Keys

Use

• Never delete "obsolete" license keys if you do not have an active license key. The system needs this information to determine whether a temporary license can be installed (for more information, see Installing Temporary License Keys, Prerequisites section).

• You should not delete the currently active license key (this is the one highlighted in transaction SLICENSE). If you want to do so, you should first install a (temporary) license key so that other users can log onto the system.

• When you delete a license key, the status of the license is not checked. In particular, there is no check to establish whether you are deleting a license key that is currently in use. If you delete a valid license key that is currently in use, no additional users will be able to log onto the system from this point on (exception: user sap*). Users who are currently logged on, however, can continue to work.

  If, by mistake, you delete a valid license key that is currently in use, you can reinstall it at any time using transaction SLICENSE. The prerequisite is that you have kept your license key. For more information, see Installing Permanent (Fixed-Period) SAP Licenses.

• The existence of old license keys that are no longer used does not affect the operation of your SAP system. Nevertheless, it is advisable to delete license keys that are no longer used. (Performance optimization during the license check.)

You can recognize temporary license keys that are based on old license keys by the characteristic CUSTOMER KEY = TEMPLICENSE. You can recognize temporary license keys that are based on new license keys in the table Licenses in the Database in column Type ( Perm or Temp). Deleting temporary licenses does not mean that you can install further temporary licenses (see also: Installing Temporary SAP License Keys).