Service accounts provide an identity for integration and automation tools to access the Unleash API. You can assign a role to a service account, granting it a specific set of permissions. Service accounts authenticate using tokens. They do not have a password and cannot access the Unleash Admin UI.
When a service account creates or modifies resources, Unleash uses the username of the account as the value for the _Created by_ or _Changed_ by properties of [events](./events).