If we don’t know any user’s password even SAP* , then we have to open “SAP* logon option with DEFAULT password” to logon related SAP system and Client.

To do this follow the steps below ;

1 – Change the following parameter value if activated on your system.

login/no_automatic_user_sapstar=0 (if value selected to 1 then you cannot logon with default password)

If you need to change this parameter unfortunately you need to restart SAP system.

2 – Open SQLPlus and delete the SAP* user , system will open with necessary authorizations and default password

SQLPlus Syntax ;

Delete from schemaname.usr02 where bname = ‘USER’ and mandt = ‘CLIENT Number’;

Example ;

Username : SAP*
Client : 000
Schema : SAPSR3

Delete from sapsr3.usr02 where bname = ‘SAP*’ and mandt = ’000′;

3 – Try to logon SAP system with following parameters

Client : 000
Username : SAP*
Password : PASS

P.S : Don’t forget to get back parameter login/no_automatic_user_sapstar value to 1 after the process