Reading the threads I assume that I would always need an object that throws an error if my condition (count(*)>0, measure>x) is fulfilled, put that in the “trigger” report and so. That sounds straight forward.
But: what if you have an OLAP universe, BW e.g.? My recent experiences show that it is quite painful, sometimes impossible to create new objects in OLAP universes, especially if it goes beyond very simple standards.