What Is a Billable Unit (BU)?

Certificate

1 BU = 1 web (SSL) certificate

Client

1 BU =  1 client OS (found by client-OS probe, such as WMI or SSH)

Cloud

1 BU = 1 Azure or Amazon EC2 virtual machine

Container

1 BU = 1 Docker Container

Database

1 BU = 1 database (MS SQL, MySQL) or schema (Oracle)

Directory

1 BU = 1 user account (local and domain accounts)

Mobile

1 BU = 1 mobile OS (Android, iOS, iPadOS)

Network

1 BU = 1 network connected device (found by SNMP), including switches, access points etc. (Printers excluded)

Printer

1 BU = 1 printer (found by SNMP)

Server

1 BU = 1 server OS (found by a server-OS probe, such as WMI or SSH)

Storage

1 BU = 1 concrete storage pool

Virtualization

1 BU = 1 virtual machine or virtualization host