@LiveHus & @Johannes_NL : Please note that there are significant, prohibitive gaps in functionality in ExB and I am no longer recommending clients migrate, but instead invest in self-hosting their existing WAB apps (and the underlying JS SDK) to ensure your apps continue to function. Perhaps one day ExB will approach parity to WAB, but that seems to be years away still.
The current release of the 'Analysis Widget' is woefully underdeveloped. If your existing GP Widgets use Map Services as inputs, require user input geometries (i.e. users draw/sketch on the mapView as an input), or if GP tools generate client-side graphics/layers/results, then the current 'Analysis' widget will not meet your needs, even with custom GP Services.
Unfortunately, this pattern isn't restricted to the Analysis widget, but most "implemented" widgets.
