Log into configtool by opening an X-Windows session (on UNIX), and then execute: /usr/sap/<SID>/JC<SYS#>/j2ee/configtool/configtool.sh (.bat on Windows).
NOTE: Once you enable the SAP* user, you will not be able to log into the system as any other users e.g. Administrator or J2EE_ADMIN.
In the configtool screen, expand the “Global server configuration -> services” branches:
Click the “com.sap.security.core.ume.service” item:
On the right hand side, scroll down to the ume.superadmin.activated option:
Set the “Value:” field to “TRUE”:
Now single click the “ume.superadmin.password” item:
You can’t see the password and the “Value:” field looks like it doesn’t accept input, but it does.
Type the new password in to the “Value:” field at the bottom (even though the cursor doesn’t move):
Now click “Set” on the right:
You will be prompted to re-enter the password:
You should restart the J2EE stack before trying to log in as SAP*.