We recommend that practices allocate multiple admins, so there is always someone to approve new members if the first admin is on holiday or leaves the practice.
The first user in your practice to sign up for Chain will become the practice's 'Admin.' An admin can:
To make other users 'Admins', click your initials icon, then click 'Practice Users'
This will take you to the 'Practice Users' page where you can click the button with the three dots to the right of the user and click 'Make Admin'