The store is a place for doing business, which can only be on your own land. Selling anything from raw materials to finished products, vehicles, or any raw materials, will be done here. Simply click on your store and list the items you want to sell and the cost, and your sell order will be on the marketplace for all to see. Also, you can create the list of items you would like to buy in your store as well. Then anyone can see your order and come sell you those goods, and this way you can get your goods delivered. The store is also where you will do business on someone else’s plot. Either buying goods there , or selling them goods, will all take place at the store. Of course, once you buy an item, you will have to pick it up from the storage on that plot. Click the store to select the goods you bought and pass them to your worker on that plot. The store can be a really useful thing, if you don't want to waste your time on transportation and are looking for any needed items nearby.
In the Market, you can find your store orders.