I am having a query on MDG architecture HUB option.
In case of ECC HUB model we have MDG-ECC and ECC Operation system.
Similarly, in case S4-HANA HUB model do we have MDG-ECC and then separate operational S4 HANA system OR
we absolutely do not have ECC system and that means we have only MDG-S4HANA and Operational S4 HANA system?
I will be thankful for kindly helping with the query.