It means you enabled user based policies for a user, but have not assigned a user based policy to them.
This post might help? https://community.mcafee.com/message/185612#185612
Thanks, that sorted it.
The only thing I dont understand is how the users got to set to use UBP's in the first place?
someone set it that way - it's not how it's set out of the box.
My apologies if this is a dumb question, but what exactly are OptIn users? I can't find any reference in any EEPC 6.x documentation that says "OptIn"
An OptIn user is a user that has a User Based Policy setting configured, please check KB73058 for a more comprehensive explanation.