purchase req is not created

Hi,
I am working on GBI Case Study and having issues with purchase requisition (it's not getting created).

When I go to the following and use my material, I don't see any of the purchase reqs there:
Navigation: Logistics -> Materials Management -> MRP -> MRP -> Evaluations -> Stock/Reqmts List

The following step was performed earlier:

Navigation: Logistics -> Materials Management -> MRP -> MRP -> Evaluations -> Stock/Reqmts List
-> Collective access tab -> Product group -> Enter -> double click on material -> clicked on Prod.ord button -> received a message "Release carried out" -> Saved (but I don't see any purchase req been created). Please help.