What is the difference between a Subaccount Name and a Subaccount User?

The Subaccount Name is the name of a purchased subaccount by an SAP Cloud Platform customer. This is done when you log in with your subaccount user in the top left section of the screen.

One subaccount can be managed by many users. For example, your company may have many administrators. One user can manage many subaccounts. Also, it can be used when the user needs to have isolated applications in multiple subaccounts.