Hi Virinchy,
Thanks for your reply. The choices you mentioned
1) Hub deployment with necessary Ui version available
This choice fits with our requirement because we can have HUB with latest UI5 and SAP_GWFND running on 7.5. However, IW_BEP on business system can be lower version as per your thumb rule. Why are you suggesting HCI (GaaS) ?
I believe we still need IW_BEP on business system (i.e. without HUB) if we go with GaaS ?
In GaaS scenario where does Gateway development take place ? In business system or GaaS.
Regards
Siva