Recertification requires the certlog.nsf be on the server where you are issuing the command in the NAB. If you don't have a certlog.nsf, you will not be able to recertify anyone. The certlog.nsf is the file that contains the information (dates, keys, etc.) of every person you have ever registered.
Dig Deeper on Domino Resources - Part 5
Related Q&A from Michael Lazar
Learn how to easily keep track of the numbers of incoming and outgoing Lotus Notes email messages to and from your Domino server each day. Continue Reading
Discover what steps you can take if your Lotus Domino server runs out of disk space and you have issues sending and receiving Lotus Notes email ... Continue Reading