SAP R/3 – It succeeds SAP R/2 and is market leader in ERP. R/3 stands for three tier architecture i.e. Presentation, Logic and Data tier. It has many modules like SD, FI, and HR etc which encompass almost all enterprise departments.
Purchase requisition in SAP determines both stock and non-stock items to the purchasing department. It can be done either manually or automatically, the document types used in purchase requisition are RFO ( Request For Quotation ) Outline Agreement