If you want to give someone access to manage UniFi:
Log in to your UniFi Dashboard (https://unifi.ui.com or local controller).
Go to Settings ⚙️ (bottom left).
Select Admins (or System > Admins in UniFi OS).
Click Invite Admin.
Enter the email address of the person.
Choose their role/permissions (e.g., Owner, Admin, Viewer, or custom).
Click Send Invitation.
The invited user will receive an email to accept and create a UniFi account.