Unlock a mainframe logon

1. Log into the mainframe and type 'DPUSER' at the prompt (case-insensitive)

2. Type 'UP' (for 'user profile') and the user's logon as shown and hit Enter

3. The user's profile page should show an 'L' on the ... field and, typically, the
reason as 'Locked due to inactivity' with the date it was locked.  If this seems
legitimate, and/or you know the user has not left their position, nor is there any
disciplinary reason to lock the logon, proceed to the next step.

4. Type an 'N' over the 'L' and clear out the reason field.  Hit Enter.  The profile page should look as shown at the right.

5. Hit F8 to exit DPUSER.