Bind on Pickup

 (often shortened to BoP or BoPU) is an item attribute, meaning that the item is bound to that player once it has been picked up and placed in Inventory. Bound items cannot be sold on the Exchange, Mailed or traded to another player. Bound items can be sold to Vendors, and some can also be salvaged, and those bound to account can be placed in Account Bank for use on another character on the account.