Pairing links one specific phone with one specific username via a unique, single-use email link. Here's how to send that link from the admin control panel.
Sign in to the control panel.
Go to "Manage Users" → "Search Users" or "Search Admins."
Enter the user or admin's info and click "Search."
Locate the account and click the "Pair" button (blue icon).
Spriv sends a unique 32-bit URL to the user's email.
They install it from Google Play or the Apple Store.
They open the email on their phone and click the unique URL.
On success, a push notification confirms the pairing.