Your browser is just not supported anymore. To continue your search, enhance to the latest Model. Find out more :– The main Edition of SAP program was introduced in and all-around 1972 generally known as the “R/1 method. R” means real-time knowledge processing. it's one particular tier architecture where 3 https://www.ecom-group.com/training-events/sap-retail-overview-of-functions-in-sap-s-4hana-retail-s4irt/