Creating Entirely new logic for fair share deployment in SNP

Hi Gurus,

I have a requirement where in the fair share logic is extremely complex

The system has to consider stocks at Plant, RDC,DC and distributor

Then carry out a complex calculation

For a each SKU calculate the  (Target Stock - Actual Stock) at DC,

Then compare it with the stock of the SKU at plant.

Based on this how much to be sent as fare share logic.

Is it possible to carry out such calculations ib SNP where we deal with order series and aggregates.

Thanks in advance

Vikas