Forecast process

Hello,

I am confused a little by the question. Are you saying you want to modify the data that you import before it is loaded to the cube or after the import?
I typically have a seeding dashboard setup for the source to a forecast scenario where an admin/central user can select from what source they want the starting point data, actuals would come from actuals and then they can select where the starting point for the forecast comes from either a budget or a prior forecast. Once that data is in then the users can just go in and update the data in the forms origin to be able to track where the changes have been made. Leveraging the origin dimension gives to visibility into the changes from the starting point to the finish forecast. You can also use a "basis" dimension if you need to track more than one type of change, as well as leverage it for any type of custom calculations that are durable. Right now, Hybrid scenarios copies a full year from one single source to another so I don't believe you will be able to leverage that because you need to have some data from actuals as well as some months from a prior forecast or the budget which isn't possible currently.