Header level MRP and component level stocks.

Dear Gurus,

I have a requirement where i have a i have a SFG with 2 components in the BOM also SFG. All items are externally procured. Scenario is Make to stock. My requirement is such that when i run MRP i want purchase req to be generated for header material. But when GR is done i want stocks at component level to be updated. This is because i am also issuing the components individually. Is this scenario possible..?

Kindly help,

Thanks,

Anand Deshmukh.