Purchase Requisition related Tcodes

ME51 Create Purchase Requisition
ME51N Create Purchase Requisition
ME52 Change Purchase Requisition
ME52N Change Purchase Requisition
ME53 Display Purchase Requisition
ME53N Display Purchase Requisition
ME54N Release Purchase Requisition
ME55 Collective Release of Purchase Reqs.
ME56 Assign Source to Purch. Requisition
ME57 Assign and Process Requisitions
ME58 Ordering: Assigned Requisitions
ME59N Automatic generation of POs
ME5A Purchase Requisitions: List Display
ME5F Release Reminder: Purch. Requisition
ME5J Purchase Requisitions for Project
ME5K Requisitions by Account Assignment
ME5R Archived Purchase Requisitions
ME5W Resubmission of Purch. Requisitions