Causal Promotion

Hi,

I need your expert help in understanding below statement for causal promotion mention RDF guide.

"RDF Causal does not support aggregation of promotion variables along any hierarchies other than Calendar (Clnd). Aggregation of promotion variables along either or both of product or location hierarchies needs to be handled externally through configuration."

I have a causal promotion 05 where source level and final level is same i.e. day_itpt_str

I have a causal variable in day_itpt_str for which I load data manually.

Now I could see my causal forecast is generating ,but not understanding how the above statement implies here.