Few querrys elated to om and po and inv in R12

Hi All,

I hav efew querrys elated to om and po and inv

1)Major OM changes in R12?

2)Can we use Inv item categories for to PO categories?

3)In Min Max Qty if you did not provided max Qty what will happen?

4)What is Global Sourcing Rule?

5)Why we have to use IRISO instead of Direct Org Transfer?

6)What is the feature of Intransit in org transfer?

7)Can we use Drop Ship item for IRISO?

Regards

VJ