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Activating the Emergency User 
In emergency situations where you configured user management incorrectly and can no longer log on to any applications, or all administrator users are locked, you can activate the emergency user SAP* to allow you to log on to applications, in particular the configuration tools, and change the configuration. The SAP* user has full administrator authorizations. For security reasons, the SAP* user does not have a default password, so you must specify a password when you activate the user.
The J2EE Engine is running as a Java-only installation.

If you are working with a combined AS for ABAP and AS for Java installation, then log on to the ABAP system as an administrator or the emergency user SAP* and create a new administrator for the J2EE Engine or unlock the administrator using the transaction SU01.
...
1. Activate the SAP* user:
a.
Start the
config tool for editing UME properties as described in
Editing UME
Properties.
b. Set the following properties:
Property |
Value |
Comment |
ume.superadmin.activated |
true |
This activates the SAP* user. |
ume.superadmin.password |
<password> |
Enter any password of your choice. This defines the password for the SAP* user. |
c. Restart the Java application server.
The SAP* user is now activated. While it is activated, all other users are deactivated. You can only log on with the SAP* user.
2. Fix your configuration as required, logging on with the user ID SAP*and the password you specified.

For example, to log on to the Visual Administrator to unlock users or create a new administrator user, proceed as follows:
i. Start the Visual Administrator by executing <SAPJ2EEEngine_installation>\j2ee\admin\go.bat.
ii.
If you have
not already done so, you have to create a new connection entry in which you
specify SAP* as the
user name. For more information, see
Creating a New
Connection Entry.
iii. In the Connect to SAP J2EE Engine dialog, select the connection entry you created and choose Connect.
iv. Enter the password you specified in the UMEproperties and choose Connect.
v. Do whatever is necessary to fix your configuration. For example, unlock all administrator users.
Similarly, you can log on to the User Administration Console using the SAP* user.
3. When you have fixed your configuration, deactivate the SAP* user again.
a.
Start the
config tool for editing UME properties as described in
Editing UME
Properties.
b. Set the property ume.superadmin.activated to false.
c. Restart the Java application server.