There are currently two ways to exclude devices from the scope in Vanta:
The first method is to toggle the devices out of scope manually; see Frequently Asked Questions: How do I Mark Resources out of Scope?
Another method is to add the devices to a smart or static group named VantaNoAlert. Administrators can follow Jamf's instructions on creating static and smart groups here. Once the devices are added to these groups, they will no longer be in scope in Vanta.