Answers for "In upgrade from PI 7.1 to PI 7.5 ( dual- usage) , is there is any connectivity issue of ECC 5.0"
https://answers.sap.com/questions/66947/in-upgrade-from-pi-71-to-pi-75-dual-usage-is-there.html
The latest answers for the question "In upgrade from PI 7.1 to PI 7.5 ( dual- usage) , is there is any connectivity issue of ECC 5.0"Answer by Mario De Felipe
https://answers.sap.com/answers/68228/view.html
<p>Hello Anshu</p><p>your ECC looks quite old, I assume that your connections to PI 7.1 will be based on proxy and Idoc mostly.</p><p>in PI 7.5 there is no dual stack, there is one ABAP and one JAVA systems, all separate. for PI only ABAP is optional, all the Java scenarios are based on ICOs, so you should reconfigure your idocs to use AAE, but I dont think that systems based on 640 can use AAE idocs.</p><p>so, my assumption is your only option will be to have ABAP (integration engine) and JAVA PI enviroments</p>Wed, 23 Nov 2016 12:27:01 GMTMario De Felipe