How do I invite someone to a federation or space?

To invite someone to join a space that you belong to or help run, navigate to the Space tab (bottom left of the screen) and tap directly on the QR code icon in front of the name of the space.

To invite someone to join a federation that you belong to or help run, navigate to the Wallets tab (bottom right of the screen) and press the Federation name to open the Federation Details page. From here, tap the QR code icon .

Alternatively, you can also navigate to Settings by tapping your profile icon at the top right of any tab. Scroll to the relevant federation or community and tap Invite members. 

Next, share the QR code displayed with the person you'd like to invite; they can either scan it if in person or you can copy and send them the link.

Note that inviting members is only possible for open federations and spaces. If you belong to a federation or space where the guardians / admins have not made the invitation code accessible, you will not see the QR code icon in the federation's details or the Invite members option on Settings for that particular federation or space.