Official: Cross Shard Trades
As part of our 4.1 release, we have extended our in-game trade system to allow trades between characters on different home shards. This means that your character will be free to send coin and items to any player character you can interact with in the world, regardless of whether you are both from the same home shard. Before we release 4.1, we are opening up cross shard trades to our players in the PTS environment to have a go at it. To really put the system through its paces, we ask that you conduct trade transactions between characters on different home shards. Trade as many coin and items with each other as you like. The trade should execute as any other normal trade.
Please note that this feature does not allow a character to send items to another character on another home shard via a mail message.