Can I use a single account to manage all my customers?

A single partner administrator account can manage day-to-day operations, like checking statuses and performing file restores.

An individual customer account must be created for initial agent deployment and some restores. This account can be linked to the same email but must have a unique account name.

Individual accounts are created for security purposes. They provide data isolation between customers.

Please refer to this article for the detailed information about creating user accounts.