Just a quick memo to myself. When creating a set where you want to filter on all people that does not have an AccountName, it`s important to be aware of a bug(?) in the filterbuilder.
Creating this set does not work, this will filter out all users with an AccountName EXCEPT users with AccountName starting on “aaAA”, funny huh?
So, you need to add this to get what you`re looking for:
Here`s the XPATH I`m using:
/Person[(ProvisioningAD = True) and (not(starts-with(AccountName, '[0-9a-zA-Z]'))) and (not(starts-with(AccountName, 'aa')))]