if you are planing to launch your own online shop, that was cool if I am going to look at it. But the question is What kind of online shop? is it Nationwide or worldwide? Actually, there are so many people out there in the world who is selling online using Facebook site.
Having a worldwide shop is going to be a tough marketing and it's not an easy challenge to take. I suggest that start it with your certain country and much better to cover your service of delivery nationwide. And take time, don't rush with your business as time will come if you are experiencing a lot of people using your online shop and there's a demand of people offshore, you can start working with worldwide business.