Step 1 — Create a Google Cloud project & enable the APIs
Create or pick a project
In the Google Cloud Console, create a new project (for example, "Edventory Sync") or select an existing one.
Enable the Admin SDK API
Go to APIs & Services → Library, search for Admin SDK API, and click Enable. This is what reads your Chrome device list.
Enable the Enterprise License Manager API
Back in the Library, search for Enterprise License Manager API and click Enable. This reads your license seat counts.