Adds this server to an existing network. network_id is the full Network ID shared by the network's creator. outbound lets your listings appear on the other servers and inbound lets theirs appear here; both are on unless you turn them off. By default Discord shows the /group-admin commands only to members with Manage Server.
Anything that is not a complete Network ID is refused with That doesn't look like a Network ID. and an example of the format; the network creator can copy the ID from /group-admin network list. An ID that matches no network gives Network not found. Check the ID and try again.
The private reply is Joined **{name}** with the mode: Full federation when both directions are on, Outbound only or Inbound only otherwise. Nothing is announced to the other servers.
After joining, members' Network and Public listings created with /group create reach the peer servers according to the networks option, and peers' listings show up in /group browse marked cross-server. Change the directions later with /group-admin network set-visibility. This command does not check whether Group Finder is switched on for the server.