We are planning an upgrade from 4.6C to ECC6. Once we have gotten the system upgraded, we only want to allow certain users access to the systems for a time, developers, basis, etc so they can do some post upgrade work before releasing the system back to the end users.
Is there a way to lock all users out and only leave a few unlocked? I have looked on the SAP Support Portal and this forum but haven't seen this question raised.
Michael