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Add products to your cart and remove them from here Lets buy❓ Why doesn't the transfer action work?
#Answer
[TRANSFER] moves a player to a completely different network without a proxy, and both ends have to support it. The message the player gets tells you which end is the problem.
#"Transfers are not supported"
The server the player is on cannot transfer at all. This needs Paper 1.20.5 or newer — Spigot does not carry the method — and the player has to be on a 1.20.5 or newer client.
#"The transfer is unavailable"
The player was refused by the destination. A server only accepts arriving transfers when this is set in its server.properties:
accepts-transfers=true
Change it there and restart that server. Nothing on the sending side needs to change.
Both of those messages are in your translations file under actions, so you can reword them for your players.
[TRANSFER] is for sending players off your network entirely. To move somebody between servers of your own proxy, use [PROXY] or [QUEUE] instead — see Action Types.