Sometimes when a Development Instance is Cloned from Production Instance, and if some Users is not available in Production Instance will not be available in Development instance after cloning. User can be generated through
API :fnd_user_pkg.createuser
DECLARE
l_user_name VARCHAR2 (100) := 'USER_NAME'; -- 'USER_NAME';
l_pwd VARCHAR2 (100) := 'password123';
BEGIN
fnd_user_pkg.createuser (x_user_name => l_user_name
,x_owner => 'FND'
,x_unencrypted_password => l_pwd
);
--commit;
fnd_user_pkg.addresp (username => l_user_name
,resp_app => 'SYSADMIN'
,resp_key => 'SYSTEM_ADMINISTRATOR'
,security_group => 'STANDARD'
,description => NULL
,start_date => SYSDATE
,end_date => NULL
);
COMMIT;
END;