Unless you use the QR code method, to link your members with real Tangles users, you need to issue each member with an invite code which is shared as a nine digit alphabetic code or as a QR code. In the web interface, click on the link icon on the member’s profile page; in the app, tap on the member’s link status. In both cases you can also elect to send the user an email. Sending each user their own code is guaranteed to create a link between that user and your community.
You can also create a code that allows any user to sign up to your community. In the mobile app, tap on the ‘community code’ status in the community view. In the web interface, click on the 'link' action on the community page. Users that sign up with details that match members that you have created will automatically be linked to the correct member. Where there is no match, a new member is created and shows as ‘requested’ in the community member list.