I just had a question from one of our webmate if PR being can be created from PO or Sch. Agr. The answer is NO, Purchase Requisition can not be created from a PO or a Sch.Agr. The reason is that PR is controlled by a Purch Org. On the other hand, if a source list is maintained for a Vendor- Material, then a PR can be automatically generated with MRP corresponding a scheduling Agreement.