To start offline trading:
|Offline Trading Begins
Offline trading begins with the transfer of personal messages to the specified character
After that, your character will automatically forward messages to the specified nickname.
If you have indicated the forwarding of private messages. Those who receive messages will receive commands to control the trade.
Send a private message to the trading character
|Sets a new name for sending messages - transfers control to a new character
|Disables forwarding private messages and takes away access to commands
|Stops the trading process and leaves the game
You can see the log of purchase / sale / private messages at the link