I tried to use an aggregator transformation which has two aggregate functions inside. One is MIN and other is SUM of some fields...
When I tried to run it. It throws me an error of Partition License blah blah....
One of our very good folks in our team found a roundabout way for this. Remove the SortedInput option for the aggregator and use a sorter transformation before it. Recreate the session and it should work now.