In the application form for registration for the Alert Channel service - module e-TRAM, it is necessary to designate a "person responsible for the service", who will be the "main contact person with the AOC consortium for everything related to this service".
This person is the one who will receive the registration email for the test environment and the real environment of the service. This person designated for registration is the first administrator of the real environment. With this role, they will not see the cases.
Once registered, you can make the changes you consider and you can freely assign all the people you consider as administrators, recipients or whatever is appropriate. Each profile or role assigned to a person will require a combination of username + password. Therefore, a person can have one or more users and roles at the same email address.