If you have an ADC (Apple Developer Connection) team, you can designate which team the service will support by providing an Apple ID that belongs to a developer account.
When you connect Xcode service to an ADC team, you allow all the members of the team access to the repositories and devices managed by the service.
This lets you use shared provisioning profiles and shared iOS devices connected to this server. To learn about device sharing and management, see How device management works.
Select Xcode in the Server app sidebar, click Settings, then click Add next to Developer Teams. Supply the team’s Apple ID and password.