Thanks so very much Mark!
Yes the primary objective is to set up a Substitute system in FSCM . The operation actually will run in legacy non SAP systems. I am intending to bring in only FSCM relevant data, perform FSCM transactions and respond back to Parent Systems with updates from FSCM.
The questions that I asked pertain mainly to the technical design behind the approach. The overall objective is to keep financial going in legacy systems however running FSCM operations in SAP.
With Regards
Prem