MRP Activation and Special procurement

Hi All

Question 1 We are activating MRP for first time , Please confirm if below are configurations or front End transactions that need to be done or any more

1.Activate RP flag in site master

2.MRP site parameters -OPPQ

Do we need to do any more configurations , How about Planning file entry's

Question 2 - We are uploading PIRS for finished goods , Planned orders are created and Purchase requisition's are created for BOM components

Requirement is we don't want any planned order for Finished goods as we are not going to convert planned orders to PR's , we are using this only to have dependent requirements

Is the solution of using Special procurement key 50 for finished goods OK, so planned orders are not created but dependent demand are created, we will do MD74 to re organize PIR .

Please suggest

Thanks

Sankar N