Hi, this might be a basic question but why Operations Dashboard only Feature Service layer? Can't it send queries to map service layers and get the results to build the charts? To use feature service layer means everything must in SDE and can't use table views or query layers which in many case are much useful.
Agreed - It is much more complicated to set this up For example, I found that the only way to serve a layer with unique attribute driven symbology is to create a domain for it. No labeling...
...but does add the ability to edit.
So, in order to do anything that the Operations Dashboard does so well, you must use the very restrictive Feature Service. If you want labels on the map, you have to use the map service, but you can't query or use any other widgets....
Positives and negatives. You find the balance, I guess.