In Aion Online, the Warehouse is a convenient place for players to offload items that they want to keep but not carry. That means if the players have items that they don't want to sell, and don't want to carry with them everywhere, and they can leave the items in their Warehouse. Find a Warehouse keeper, and they can access their Private Warehouse. Just like selling it trading the items for Aion Kinah, they can drag the items to the storage area or right-click them from their inventory.
Some items associated with quests will not be able to place items insider of your Private Warehouse. And there are several exceptions that just cannot be stored in the Warehouse, and these items will tell you where they can be stored.
Account Warehouse can help you to transfer items between characters. Playing alternate characters on your account is a great way to experience the entire game. Plus you may have a need for a specific character in grouping. It is only natural that you would want to keep some the best items for yourself. Still, there will some items cannot be added to the Account Warehouse section.
Legion Warehouse is the place to collect your funds and items for the good of the legion. Those who have the proper permissions can both deposit and remove items from the legion warehouse. It works the exact same way as the regular warehouse. That is to say that you can drag and drop or right click to move items around.
You can expand the available space of your warehouse. You can have up to 64 spaces in your warehouse. In order to gain more space you click on Expand. Depending on the state of control in the Abyss, the amount of Aion Kinah you pay to upgrade each level of your warehouse will change. At this time you can only have 16 spaces in your Account Warehouse.