From the left-hand menu of the administration screen, enter the email address of the user you want to link with under [Invite Linking] and send an invitation email.

[If you are already registered as an app user]
Please enter your app user information using the URL provided in the invitation email you received, and complete the connection with the team.

[If you are not yet registered as an app user]
Please register as a new user using the URL provided in the invitation email you received.