Copy a dynamic calc parent member to a stored base level member

Summary:

Need to copy a dynamic calc member to a stored base member

Content (please ensure you mask any confidential information):

I have a roll up (below) in a sparse dimension. It is a dynamic calc. I would like to copy the total to one of the base level children in same dimension but a different scenario - Week4 to Forecast. all other dims/POVs are the same. But I can't get it to work.

I tried:

DATACOPY "Amount" to "Load";

DATACOPY Week4→"Amount" to Forecast→"Load";

Forecast→Load = Week4→Load + Week4→Adj

Is this possible?

Version (include the version you are using, if applicable):