We noticed that it is not possible to apply the new Attribution IQ features on a calculated metric. Only original succes events can be used for attribution modelling.
As our implementation relies heavy on calculated metrics, this is a big limitation to us. For example: we have a generic impression event for form steps. And create a calculated metric for our conversions: impressions from form step = laststep of tool X.
We found a work-around by creating segments that mimic the calculated metric and apply those segments on a column on which we can then apply a specific attribution model. However, this is additional work that can be avoided.
So, my question for the Adobe Analytics product development team: is enabling attirbution modelling on calculated metrics on your roadmap or not? And if so, any hints for release dates?