MRP Controller (ECC) Vs Planner (APO)

Hi,

In APO Product Master, we have 5 different planners namely Production planner, SNP Planner, Demand Planner, Transportation Planner, SNC Planner.

I need following inputs:

1 MRP Controller of ECC is mapped to which of the planners in APO?

2 How to update MRP Controller to the planner (as this does not happen normally through CIF)

regards,

Mohit