Mass unlock/lock users

How to mass unlock or lock a list of users

You may use transaction code SU10, User maintenance: Mass Changes.
You may noticed that you are needed to manually key in the user id up to 18 rows only. But afraid not, you may paste a long list of users id with this method

1. Go to SU10
2. Click on Authorisation Data button
3. Click Multi selection for user column 
4. Key in list of users
    
5. Execute 
6. This will bring you to a report page 
7. Select all users and click Transfers
    
8. Now you will be back at User maintenance along with the list of users 
9. Click on Lock users 
10. Done. Check the log.