Promotion Insersection Clarification

Hi all,

As RDF guide mention, Promotion Intersection is Independent of the causal forecasting levels.

However i would like to ask if anyone knows how Causal Engine calculate the effects for those Promotions which have higher intx from Final Level ? ( spread to final ? )

I managed to find out that automation produces effects in causal level ( in the configuration )  but promotion variables are in higher level .

Any help would be greatly appreciated

Thanks in advance

Kostas