After you sign in to your Oracle Cloud Account, one of your first tasks is to create additional account users. For example, you can create a user for each member of your team. Each team member can then sign in to the account with their own credentials. You can also assign each user to specific user groups, and apply specific security policies or roles to each group.
If the users you create will be using the services available from the Oracle Cloud Console, then you can use the Oracle Cloud Console to create your additional users.
However, if the new users will be managing Platform Cloud Services available from the My Services dashboard, then you'll use the Users page in My Services to create and manage those users.