Purchase Order related Tcodes

ME21N Create Purchase Order
ME22N Change Purchase Order
ME23N Display Purchase Order
ME24 Maintain Purchase Order Supplement
ME25 Create PO with Source Determination
ME27 Create Stock Transport Order
ME28 Release Purchase Order
ME29N Release Purchase Order
ME2A Monitor Confirmations
ME2B POs by Requirement Tracking Number
ME2C Purchase Orders by Material Group
ME2J Purchase Orders for Project
ME2K Purch. Orders by Account Assignment
ME2L Purchase Orders by Vendor
ME2M Purchase Orders by Material
ME2N Purchase Orders by PO Number
ME2O SC Stock Monitoring (Vendor)
ME2S Services per Purchase Order
ME2V Goods Receipt Forecast
ME2W Purchase Orders for Supplying Plant