ECC issues while upgrading PI 7.1-> 7.4 (Dual Stack)
We are a big Food Manufacturing Company and are beginning a project of PI upgrade very soon where we will be upgrading from PI 7.1.1 to PI 7.4 Dual Stack
We have a variety of Interfaces between SAP ECC and PI which will be slowly migrated to PI 7.4 Dual Stack first and then later,we will decide upon PI 7.4 Single Stack Conversion.
During the course of Upgrading we are facing the following issues :
a) While converting IDOC->PI and PI -> scenarios what are the different steps to consider in ECC side , so that the IDOCS in the current running interface can point to both SAP PI 7.1/1 Production and newly developed PI 7.4 Development box at the same time for Testing , before Cutover can happen
b) For Proxy-> PI and PI -> Proxy scenarios, what steps can be taken care in SAP ECC side , for the proxy to point to two PI integration servers at the same time , PI 7.1. Production and PI 7.4 (newly developed=)
c) Same for RFC-> PI and PI -> RFC scenarios.- whast changes can be made?
Most importantly if we are not migrating our scenarios in ID part through Migration Toolkit, can you please suggest a document or How to -> for transporting the Integration scenarios/components in bulk or strategy for the same.
Please help !