What is the best way to interface SAP R/3 system and Non SAP R/3 systems, if it needs to be real time interface?...
I used to do the interface between both system by using batch input and send flat file between the system. Do we need to have a EAI (Middle ware) for real time interface?
BAPIs are the best way to do real-time interfaces. The SAP Java Connector (JCo) is the best solution if you want to write your own application. If you just need a mapping between external and SAP formats, consider the SAP Business Connector. Both products can be downloaded from SAP (http://service.sap.com/connectors).
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