above and under were the 2 new operators introduced with Dynamic CRM 2015.
Let us see some of the examples.
Suppose I have the following hierarchy defined, wherein User 2 is manager of user Nishant Rana who in turn is manager of User 1.
And following are the contacts record owned by them.
In context of user Nishant Rana, if I apply Under operator, we’d get the following result
Only the records owned by child
And for Not Under
All the records owned by the user and its manager(s) or parent.
Now we do not have the Above operator in Advanced Find
So, using our favorite tool Fetch XML Builder, the above operator shows only the records owned by the parent(s) of current user.
We also have Above or equal, Under or equal operator which aren’t there in Advanced Find.
Hope it helps..