Fivetran has introduced Custom Roles for its Enterprise users, allowing top-level administrators (Owners) to create roles with custom permissions and assign them to users. This feature enables organizations to specify exactly which data sources a role can manage, thereby enhancing security and access control. By default, four roles are offered: Admin, Analyst, Uploader, and Read Only. Custom Roles provide the flexibility for organizations to grant varying levels of access based on user needs and data sensitivity.