Creation of Reservation for planned order

Hi Team,

Is it possible to create reservation for planned orders after MRP run?

My opinion was the reservation can only be created with reference to production order after MRP. The reservation can not be created with reference to planne dorders after MRP run because planned orders are intermident document which will not exist in the system always. The planned order details will not be available in the system once it get converted into production order.

How the reservation will be processed which was created with reference to planned order after converting the planned order to production order?

Kindly need ur guidance.

Thanks

psk